Patent classifications
E
FIXED CONSTRUCTIONS
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E03
WATER SUPPLY; SEWERAGE
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E03F
SEWERS; CESSPOOLS
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9/00
Arrangements or fixed installations; methods or devices; for cleaning; or clearing; sewer pipes, e.g. by flushing
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E03F9/002
Cleaning sewer pipes by mechanical means
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E03F9/005
Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods
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