F28G1/00	7	Non-rotary, e.g. reciprocated, appliances (F28G3/00 takes precedence)	F28G1/00	F28G1/00		232
F28G1/02	8	having brushes ({F28G1/12 takes precedence;} brushes A46B)	F28G1/02	F28G1/02		588
F28G1/04	8	having articulated tools, e.g. assembled in chain manner	F28G1/04	F28G1/04		42
F28G1/06	8	having coiled wire tools, i.e. basket type	F28G1/06	F28G1/06		33
F28G1/08	8	having scrapers, hammers, or cutters, e.g. rigidly mounted	F28G1/08	F28G1/08		753
F28G1/10	9	resiliently mounted	F28G1/10	F28G1/10		55
F28G1/12	8	Fluid-propelled scrapers, bullets, or like solid bodies	F28G1/12	F28G1/12		1097
F28G1/125	9	{forced back and forth by means of flow reversal}	F28G1/12	F28G1/12		113
F28G1/14	8	Pull-through rods	F28G1/14	F28G1/14		33
F28G1/16	8	using jets of fluid for removing debris (F28G1/12 takes precedence)	F28G1/16	F28G1/16		623
F28G1/163	9	{from internal surfaces of heat exchange conduits}	F28G1/16	F28G1/16		391
F28G1/166	9	{from external surfaces of heat exchange conduits}	F28G1/16	F28G1/16		643
F28G3/00	7	Rotary appliances	F28G3/00	F28G3/00		124
F28G3/02	8	having abrasive tools	F28G3/02	F28G3/02		27
F28G3/04	8	having brushes (brushes A46B)	F28G3/04	F28G3/04		485
F28G3/06	8	having articulated tools, e.g. assembled in chain manner	F28G3/06	F28G3/06		9
F28G3/08	8	having coiled wire tools, i.e. basket type	F28G3/08	F28G3/08		33
F28G3/10	8	having scrapers, hammers, or cutters, e.g. rigidly mounted	F28G3/10	F28G3/10		578
F28G3/12	9	resiliently mounted	F28G3/12	F28G3/12		58
F28G3/14	9	thrown into working position by centrifugal force	F28G3/14	F28G3/14		235
F28G3/16	8	using jets of fluid for removing debris	F28G3/16	F28G3/16		282
F28G3/163	9	{from internal surfaces of heat exchange conduits}	F28G3/16	F28G3/16		304
F28G3/166	9	{from external surfaces of heat exchange conduits}	F28G3/16	F28G3/16		713
F28G5/00	7	Cleaning by distortion (by vibration F28G7/00)	F28G5/00	F28G5/00		60
F28G7/00	7	Cleaning by vibration {or pressure waves}	F28G7/00	F28G7/00		1025
F28G7/005	8	{by explosions or detonations; by pressure waves generated by combustion processes}	F28G7/00	F28G7/00		112
F28G9/00	7	Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16)	F28G9/00	F28G9/00		3425
F28G9/005	8	{of regenerative heat exchanger}	F28G9/00	F28G9/00		132
F28G11/00	7	Cleaning by combustion, e.g. using squibs, using travelling burners {(F28G7/005 takes precedence)}	F28G11/00	F28G11/00		74
F28G13/00	7	Appliances or processes not covered by groups F28G1/00&#160;-&#160;F28G11/00; Combinations of appliances or processes covered by groups F28G1/00&#160;-&#160;F28G11/00	F28G13/00	F28G13/00		780
F28G13/005	8	{cleaning by increasing the temperature of heat exchange surfaces (F28G7/005, F28G11/00 take precedence)}	F28G13/00	F28G13/00		79
F28G15/00	7	Details (measuring thickness of deposit G01B)	F28G15/00	F28G15/00		996
F28G15/003	8	{Control arrangements}	F28G15/00	F28G15/00		1282
F28G2015/006	8	{Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling}	F28G15/00	F28G15/00		280
F28G15/02	8	Supports for cleaning appliances, e.g. frames	F28G15/02	F28G15/02		602
F28G15/04	8	Feeding and driving arrangements, e.g. power operation	F28G15/04	F28G15/04		1636
F28G15/06	9	Automatic reversing devices	F28G15/06	F28G15/06		182
F28G15/08	8	Locating position of cleaning appliances within conduits	F28G15/08	F28G15/08		91
F28G15/10	8	Masks for delimiting area to be cleaned	F28G15/10	F28G15/10		22
