G04F1/00	7	Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers	G04F1/00	G04F1/00		487
G04F1/005	8	{using electronic timing, e.g. counting means (pulse time delay arrangements H03K5/13; modifications of electronic switches for introducing a time delay before switching H03K17/28)}	G04F1/00	G04F1/00		821
G04F1/02	8	by consuming prefixed quantities of materials, e.g. by burning candle	G04F1/02	G04F1/02		33
G04F1/04	8	by movement or acceleration due to gravity	G04F1/04	G04F1/04		77
G04F1/06	9	by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock	G04F1/06	G04F1/06		366
G04F1/063	10	{using acoustic signalling}	G04F1/06	G04F1/06		26
G04F1/066	10	{using electrical contact device}	G04F1/06	G04F1/06		98
G04F1/08	9	by a body falling a prefixed distance in air or in a viscous material	G04F1/08	G04F1/08		60
G04F3/00	7	Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork	G04F3/00	G04F3/00		273
G04F3/02	8	with mechanical driving mechanisms	G04F3/02	G04F3/02		214
G04F3/022	9	{using mechanical signalling device}	G04F3/02	G04F3/02		197
G04F3/025	9	{mechanically actuated (cigar or cigarette receptacles or boxes with means for limiting the frequency of smoking A24F15/005)}	G04F3/02	G04F3/02		146
G04F3/027	9	{using electrical contacts, e.g. for actuating electro-acoustic device}	G04F3/02	G04F3/02		664
G04F3/04	9	Additional arrangements in connection with ordinary non-electric clocks for this purpose	G04F3/04	G04F3/04		117
G04F3/06	8	with electric driving mechanisms	G04F3/06	G04F3/06		820
G04F3/08	9	Additional arrangements in connection with ordinary electric clocks for this purpose	G04F3/08	G04F3/08		166
G04F5/00	7	Apparatus for producing preselected time intervals for use as timing standards (generating clock signals for electric digital computers G06F1/04)	G04F5/00	G04F5/00		161
G04F5/02	8	Metronomes	G04F5/02	G04F5/02		238
G04F5/022	9	{Mechanic metronomes}	G04F5/02	G04F5/02		135
G04F5/025	9	{Electronic metronomes (rhytem generation for electrophonic musical instruments G10H1/36)}	G04F5/02	G04F5/02		288
G04F5/027	9	{using electro-mechanical driving, e.g. of optical scanned recordings (electrophonic musical instruments in which tones are generated by electromechanical means, e.g. by using pick-up means for reading recorded waves G10H3/00)}	G04F5/02	G04F5/02		44
G04F5/04	8	using oscillators with electromechanical resonators {producing electric oscillations or timing pulses}	G04F5/04	G04F5/04		86
G04F5/06	9	using piezoelectric resonators	G04F5/06	G04F5/06		304
G04F5/063	10	{Constructional details}	G04F5/06	G04F5/06		286
G04F5/066	11	{Trimmer condensators}	G04F5/06	G04F5/06		45
G04F5/08	9	using magnetostrictive resonators	G04F5/08	G04F5/08		2
G04F5/10	8	using electric or electronic resonators (G04F5/14 takes precedence)	G04F5/10	G04F5/10		97
G04F5/12	8	using fluidic devices	G04F5/12	G04F5/12		7
G04F5/14	8	using atomic clocks	G04F5/14	G04F5/14		1024
G04F5/145	9	{using Coherent Population Trapping}	G04F5/14	G04F5/14		308
G04F5/16	8	using pulses produced by radio-isotopes	G04F5/16	G04F5/16		33
G04F7/00	7	Apparatus for measuring unknown time intervals by non-electric means (using fluidic means G04F13/06)	G04F7/00	G04F7/00		104
G04F7/02	8	by measuring the distance of fall or the final velocity of a falling body	G04F7/02	G04F7/02		12
G04F7/04	8	using a mechanical oscillator	G04F7/04	G04F7/04		93
G04F7/06	9	running only during the time interval to be measured, e.g. stopwatches	G04F7/06	G04F7/06		235
G04F7/062	10	{with reset mechanisms}	G04F7/06	G04F7/06		18
G04F7/065	10	{with start-stop control arrangements}	G04F7/06	G04F7/06		37
G04F7/067	11	{with a single push-button or actuation member for start-stop and reset}	G04F7/06	G04F7/06		1
G04F7/08	9	Watches or clocks with stop devices, e.g. chronograph	G04F7/08	G04F7/08		571
G04F7/0804	10	{with reset mechanisms}	G04F7/08	G04F7/08		99
G04F7/0809	11	{with single hammers, i.e. one hammer acts on each counter}	G04F7/08	G04F7/08		40
G04F7/0814	11	{with double hammer, i.e. one hammer acts on two counters}	G04F7/08	G04F7/08		80
G04F7/0819	11	{with triple hammer, i.e. one hammer acts on three counters}	G04F7/08	G04F7/08		15
G04F7/0823	10	{with couplings between the chronograph mechanism and the base movement}	G04F7/08	G04F7/08		36
G04F7/0828	11	{acting in the plane of the movement}	G04F7/08	G04F7/08		80
G04F7/0833	11	{acting perpendicular to the plane of the movement}	G04F7/08	G04F7/08		52
G04F7/0838	11	{involving a tilting movement}	G04F7/08	G04F7/08		19
G04F7/0842	10	{with start-stop control mechanisms}	G04F7/08	G04F7/08		67
G04F7/0847	11	{with column wheel}	G04F7/08	G04F7/08		124
G04F7/0852	11	{with member having a rotational two-way movement, e.g. navette}	G04F7/08	G04F7/08		34
G04F7/0857	11	{with single push-button or actuation member for start-stop and reset}	G04F7/08	G04F7/08		56
G04F7/0861	11	{actuated by other than push-buttons, e.g. bezel or lever}	G04F7/08	G04F7/08		38
G04F7/0866	10	{Special arrangements}	G04F7/08	G04F7/08		117
G04F7/0871	11	{with multiple chronograph functions, i.e. to count multiple running times (alternate time counting G07C)}	G04F7/08	G04F7/08		44
G04F7/0876	11	{Split-time function, e.g. rattrappante}	G04F7/08	G04F7/08		67
G04F7/088	11	{with display of fraction of seconds, e.g. foudroyante}	G04F7/08	G04F7/08		39
G04F7/0885	11	{Modular constructions involving interchangeability with one or more chronograph modules on a single base movement}	G04F7/08	G04F7/08		17
G04F7/089	11	{indicating measured time by other than hands, e.g. numbered bands, drums, discs or sheet (current time indication other than by hand G04B19/20)}	G04F7/08	G04F7/08		30
G04F7/0895	11	{with a separate barrel for the chronograph functions (barrel in a separable module G04F7/0885)}	G04F7/08	G04F7/08		31
G04F7/10	8	Means used apart from the time-piece for starting or stopping same	G04F7/10	G04F7/10		57
G04F8/00	7	Apparatus for measuring unknown time intervals by electromechanical means	G04F8/00	G04F8/00		141
G04F8/003	8	{using continuously running driving means}	G04F8/00	G04F8/00		66
G04F8/006	8	{running only during the time interval to be measured, e.g. stopwatches}	G04F8/00	G04F8/00		152
G04F8/02	8	using an electromechanical oscillator {(G04F5/00, G04F10/00 take precedence)}	G04F8/02	G04F8/02		16
G04F8/04	9	using a piezoelectric oscillator	G04F8/04	G04F8/04		4
G04F8/06	9	using a magnetostrictive oscillator	G04F8/06	G04F8/06		1
G04F8/08	8	Means used apart from the time-piece for starting or stopping same	G04F8/08	G04F8/08		323
G04F10/00	7	Apparatus for measuring unknown time intervals by electric means	G04F10/00	G04F10/00		1157
G04F10/005	8	{Time-to-digital converters [TDC] (analog-to-digital converters with intermediate conversion to time or phase H03M1/50, H03M1/60)}	G04F10/00	G04F10/00		1082
G04F10/02	8	using oscillators with passive electric resonator, e.g. lumped LC {(G04F10/04, G04F10/06 and G04F10/10 take precedence)}	G04F10/02	G04F10/02		18
G04F10/04	8	by counting pulses or half-cycles of an AC {(G04F10/005&#160;takes precedence)}	G04F10/04	G04F10/04		787
G04F10/06	8	by measuring phase {(G04F10/005 takes precedence)}	G04F10/06	G04F10/06		116
G04F10/10	8	by measuring electric or magnetic quantities changing in proportion to time	G04F10/10	G04F10/10		250
G04F10/105	9	{with conversion of the time-intervals}	G04F10/10	G04F10/10		55
G04F13/00	7	Apparatus for measuring unknown time intervals by means not provided for in groups G04F5/00&#160;-&#160;G04F10/00	G04F13/00	G04F13/00		99
G04F13/02	8	using optical means	G04F13/02	G04F13/02		197
G04F13/023	9	{using cathode-ray oscilloscopes (circuits for inserting reference time markers for cathode-ray oscilloscopes G01R13/305)}	G04F13/02	G04F13/02		62
G04F13/026	9	{Measuring duration of ultra-short light pulses, e.g. in the pico-second range; particular detecting devices therefor (photometry, radiation pyrometry G01J1/00, G01J5/00; non-linear optics G02F1/35)}	G04F13/02	G04F13/02		146
G04F13/04	8	using electrochemical means	G04F13/04	G04F13/04		49
G04F13/06	8	using fluidic means	G04F13/06	G04F13/06		42
