G04F   1/00		ưʤͽޤĴǽʸֳִ֤ڤ뤿˥åȤӥȤǤ֡㡥åޡΣ	Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers	1471
G04F   1/02		̤ʪ񤹤Ρ㡥ǳƤˤ	by consuming prefixed quantities of materials, e.g. by burning candle	79
G04F   1/04		Ϥˤ뱿ưޤϲ®ˤ	by movement or acceleration due to gravity	132
G04F   1/06		̤γҾʪޤϱΤήФˤΡ㡥ס	by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock	1221
G04F   1/08		ΥζޤǴʪʪΤˤ	by a body falling a prefixed distance in air or in a viscous material	133
G04F   3/00		ưġͽޤĴǽʸֳִ֤ڤ뤿˥åȤӥȤǤ֡㡥׻ųݤ̷סΣ	Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork	2262
G04F   3/02		ŪưĤ	with mechanical driving mechanisms	1763
G04F   3/04		̤ŵפ˷礷ղ	Additional arrangements in connection with ordinary non-electric clocks for this purpose	145
G04F   3/06		ŵŪưĤ	with electric driving mechanisms	1531
G04F   3/08		̤ŵפ˷礷ղ	Additional arrangements in connection with ordinary electric clocks for this purpose	174
G04F   5/00		ɸȤƻѤ뤢餫ꤵ줿ֳִ֤ȯ뤿֡ŵŪǥ׻ΤΥåȯǣƣˡΣ	Apparatus for producing preselected time intervals for use as timing standards(generating clock signals for electric digital computers <b>G06F1/04</b>)	594
G04F   5/02		ȥΡ	Metronomes	1424
G04F   5/04		ŵŪͭ뿶ưҤѤΡΣ	using oscillators with electromechanical resonators	131
G04F   5/06		ԥŵѤΡΣ	using piezoelectric resonators	660
G04F   5/08		襤ѤΡΣ	using magnetostrictive resonators	2
G04F   5/10		ŵŪޤŻŪѤΡʣǣƣͥˡΣ	using electric or electronic resonators(<b>G04F5/14</b> takes precedence)	120
G04F   5/12		ήŪ֤ѤΡΣ	using fluidic devices	14
G04F   5/14		һפѤΡΣ	using atomic clocks	1432
G04F   5/16		饸ȡפˤȯѥ륹ѤΡΣ	using pulses produced by radio-isotopes	39
G04F   7/00		ŵŪʤˤä̤λֳִ֤¬ꤹ֡ήŪʤѤΣǣƣˡΣ	Apparatus for measuring unknown time intervals by non-electric means (using fluidic means <b>G04F13/06</b>)	250
G04F   7/02		ΤΥޤϺǽ®٤¬ꤹ	by measuring the distance of fall or the final velocity of a falling body	16
G04F   7/04		ŪưҤѤΡΣ	using a mechanical oscillator	479
G04F   7/06		¬ֳִ֤δ֤ΤưΡ㡥ȥåץå	running only during the time interval to be measured, e.g. stopwatches	478
G04F   7/08		֤Ļס㡥Υ	Watches or clocks with stop devices, e.g. chronograph	1198
G04F   7/10		ưߤΤ˻פȤ̸Ĥ˻ѤʡΣ	Means used apart from the time-piece for starting or stopping same	84
G04F   8/00		ŵŪʤˤä̤λֳִ֤¬ꤹ֡Σ	Apparatus for measuring unknown time intervals by electromechanical means	773
G04F   8/02		ŵŪưҤѤΡΣ	using an electromechanical oscillator	256
G04F   8/04		ԥŵưҤѤΡΣ	using a piezoelectric oscillator	21
G04F   8/06		襤ưҤѤΡΣ	using a magnetostrictive oscillator	2
G04F   8/08		ưߤΤ˻פȤ̸Ĥ˻ѤʡΣ	Means used apart from the time-piece for starting or stopping same	339
G04F  10/00		ŵŪʤˤä̤λֳִ֤¬ꤹ֡Σ	Apparatus for measuring unknown time intervals by electric means	5298
G04F  10/02		ưŵ㡥̣áͭ뿶ưҤѤΡΣ	using oscillators with passive electric resonator, e.g. lumped LC	49
G04F  10/04		ѥ륹ޤϸήȾη׿ˤΡΣ	by counting pulses or half-cycles of an AC	3054
G04F  10/06		¬ˤΡΣ	by measuring phase	320
G04F  10/08		饸ȡפˤȯѥ륹ѤΡΣ	using pulses produced by radio-isotopes	14
G04F  10/10		֤㤷Ѳŵ̤ޤϼ̤¬ˤΡΣ	by measuring electric or magnetic quantities changing in proportion to time	522
G04F  13/00		롼ףǣƣǣƣޤǤʬवʤʤˤä̤λֳִ֤¬ꤹ֡Σ	Apparatus for measuring unknown time intervals by means not provided for in groups <b>G04F5/00 to G04F10/00</b> 	303
G04F  13/02		ŪʤѤΡΣ	using optical means	586
G04F  13/04		ŵŪʤѤΡΣ	using electrochemical means	212
G04F  13/06		ήŪʤѤΡΣ	using fluidic means	54
