E03B   1/00		ˡޤϥ쥤ȡʣţ£ţ£ͥˡΣ	Methods or layout of installations for water supply(<b>E03B3/00</b>, <b>E03B9/00</b> take precedence)	3440
E03B   1/02		ѤޤμƻѤΤ	for public or like main supply	3366
E03B   1/04		ѤޤʬƻѤΤ	for domestic or like local supply	6141
E03B   3/00		ޤϥåץޤϽ夹ˡޤʿãơˡΣ	Methods or installations for obtaining or collecting drinking water or tap water(treatment of water <b>C02F</b>)	1506
E03B   3/02		夫Τ	from rain-water	40166
E03B   3/03		Ѥα彸塤üƴ㡥ŷ太	Special vessels for collecting or storing rain-water for use in the household, e.g. water-butts	3137
E03B   3/04		ɽ夫Τ	from surface water	2941
E03B   3/06		ϲ夫Τ	from underground	1034
E03B   3/08		ͤˤ太ӽʿ太¾ήΤȤȤ߹碌ˡޤ¾αΤΤߤ˱ѤΣţ£	Obtaining and confining water by means of wells(applicable to a combination of water and other liquids or to other liquids only <b>E21B43/00</b>)	981
E03B   3/10		ͤˤ	by means of pit wells	410
E03B   3/11		ɤȤ߹碌Ρ㡥ͤγ¦˷꤬ʿޤϾ˷ĥФƤ	in combination with tubes, e.g. perforated, extending horizontally, or upwardly inclined, exterior to the pits	489
E03B   3/12		Ĥδɰͤˤ	by means of vertical pipe wells	537
E03B   3/14		ʿޤϷаͤˤ	by means of horizontal or oblique wells	86
E03B   3/15		ͤɹݤˡ㡥ݡƷˤΡͤޤڿؤ̤ΰݻޤϳĥʿ͹Ū˭٤ˤ뤳ȣţ£	Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers(with artificial enrichment <b>E03B3/32</b>)	1013
E03B   3/16		ͤι	Component parts of wells	639
E03B   3/18		ͤʤ̣£ģ£ģ	Well filters(filters in general <b>B01D24/00 to B01D35/00</b> )	867
E03B   3/20		üʷǤΤ	of elements of special shape	319
E03B   3/22			Selection of specified materials	49
E03B   3/24		ФФκǷΡ㡥	formed of loose materials, e.g. gravel	152
E03B   3/26		ͤޤ줿Ĥ	with packed filtering material	69
E03B   3/28		äΤΡʾΰ̰̣£ģĴѤζæƣƣ	from humid air(condensing of vapours in general <b>B01D5/00</b>; dehumidification of air for air-conditioning <b>F24F3/14</b>)	4755
E03B   3/30		ޤɹΤΡΣ	from snow or ice	354
E03B   3/32		͹Ū˭٤ˤʤ˴ؤΡ㡥Ӥζˤ	with artificial enrichment, e.g. by adding water from a pond or a river	302
E03B   3/34		ϲˤĤƤΤ	of underground water	539
E03B   3/36		ɽˤĤƤΤ	of surface water	267
E03B   3/38		Ѥΰ椲	Curbs for springs	32
E03B   3/40		Ѥ¾֡㡥ߤӿ	Other devices for confining, e.g. trenches, drainage	466
E03B   5/00		ݥ׻ߤޤϥݥλѡΥ쥤ȡʥݥסݥ׻ߤޤϥݥ켫Σƣ	Use of pumping plants or installations; Layouts thereof(pumps, pumping plants or installations <u>per se</u>, <b>F04</b>)	7132
E03B   5/02		ʪ줿	arranged in buildings	1156
E03B   5/04		ͤ줿	arranged in wells	571
E03B   5/06		ü	Special equipment	295
E03B   7/00		ɡߴɷʴɰ̣ƣ̡	Water main or service pipe systems(pipes or tubes in general <b>F16L</b>)	4362
E03B   7/02		Ѥޤμɷ	Public or like main pipe systems	2134
E03B   7/04		Ѥޤζɷϡʲ۴ɹţã	Domestic or like local pipe systems(domestic plumbing <b>E03C1/02</b>)	2231
E03B   7/07		ɷϤˤ֤㡥ɷϤˤή¬֡եޤۡΣ	Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems	20851
E03B   7/08		ӿ֤ӿְ̣ƣˡ̡	Arrangement of draining devices(draining devices in general <b>F16K</b>, <b>F16L</b>)	1860
E03B   7/09		ޤ°ʪʴѶ££ѿƻɱɻ֣ţã»ɻ֣ƣ̡ɤβǮ̣ƣ̣	Component parts or accessories(tools for cleaning pipes <b>B08B9/02</b>; devices for preventing contamination of drinking water pipes for domestic use <b>E03C1/10</b>; devices for preventing damage in case of bursts of pipes <b>F16L</b>; heating of pipes in general <b>F16L53/00</b>)	6950
E03B   7/10		ˤɤɻ֡ʴɤɻְ̣ƣ̣	Devices preventing bursting of pipes by freezing(devices preventing bursting of pipes in general <b>F16L55/00</b>)	2415
E03B   7/12		ɤȤˤ	by preventing freezing	2969
E03B   7/14		뤷ɤɹ뤿	Devices for thawing frozen pipes	331
E03B   9/00		Фˡޤʲѿ֣ţáޤۤΤΣƣˡˡΣ	Methods or installations for drawing-off water(domestic water-drawing devices <b>E03C</b>; taps or valves <u>per se</u><b>F16K</b>)	1106
E03B   9/02		򡨤֡Ѹ	Hydrants; Arrangement of valves therein; Keys for hydrants	4448
E03B   9/04			Column hydrants	1852
E03B   9/06		ʤ	Covers	902
E03B   9/08		ϲ	Underground hydrants	1070
E03B   9/10		ݸĤޤʤ	Protective plates or covers	1881
E03B   9/12		Ω	Stand-pipes	493
E03B   9/14		ӿ	Draining devices for hydrants	942
E03B   9/16		Խʪ㡥α	Devices for retaining foreign matter, e.g. sand	90
E03B   9/18		Ѷ	Cleaning tools for hydrants	76
E03B   9/20		夹뤿ʮޤϤ	Pillar fountains or like apparatus for dispensing drinking water	1169
E03B  11/00		ѿ֤ޤϱѡŷ太ţ£¢ط£ġ£ǡƣ¡ƣáãţģڹصѤѤ¢ƴηߤޤΩƣţȣطţȣ	Arrangements or adaptations of tanks for water supply(water-butts <b>E03B3/03</b>; storage aspects <b>B65D</b>, <b>B65G</b>, <b>F17B</b>, <b>F17C</b>; foundations <b>E02D27/38</b>; construction or assembling of bulk storage containers employing civil engineering techniques <b>E04H7/00</b>; tower aspects <b>E04H12/00</b>)	12012
E03B  11/02		ѤޤʬƻѤΤ	for domestic or like local water supply	4086
E03B  11/04		Ĵ⤿ʤ	without air regulator	581
E03B  11/06		ĴĤ	with air regulator	2329
E03B  11/08		Ĵ	Air regulators	886
E03B  11/10		ѤޤμƻѤΤ	for public or like main water supply	2778
E03B  11/12		ֿ	of high-level tanks	1606
E03B  11/14		ϲ	of underground tanks	1869
E03B  11/16		ݥ֤αѡ㡥ư	Adaptations of devices for putting pumping plants in and out of operation, e.g. automatic control devices	7201
