E
SECTION E — FIXED CONSTRUCTIONS
  
BUILDING
 E03
WATER SUPPLY; SEWERAGE
 E03F
SEWERS; CESSPOOLS
 E03F
Subclass index
SEWERS 1/00 - 9/00
CESSPOOLS 11/00, 7/00
P:0 E03F 1/00
Methods, systems, or installations for draining-off sewage or storm water
P:10 E03F 3/00
Sewer pipe-line systems
 E03F 3/04
·  Pipes or fittings specially adapted to sewers (manufacture of concrete tubes B28; pipes or pipe fittings in general F16L)
P:20 E03F 5/00
Sewerage structures (covers or frames for manholes or the like E02D 29/14)
 E03F 5/04
·  Gullies with or without odour seals or sediment traps
 E03F 5/06
·  ·  Gully gratings
 E03F 5/10
·  Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
 E03F 5/14
·  Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates (for use in sewage purification plants or both in sewage purification plants or in sewer systems B01D, C02F)
P:40 E03F 7/00
Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
P:30 E03F 9/00
Arrangements or fixed installations for cleaning sewer pipes, e.g. by flushing (sediment traps, rakes, screens, or the like, arranged in sewer lines E03F 5/14; cleaning pipes in general, devices for cleaning pipes B08B 9/02)
P:50 E03F 11/00
Cesspools (emptying cesspools E03F 7/00; features relating to treatment of sewage C02F)