TREA

providing an air lock

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Industry

  • CPC
  • E03D1/056
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Parent Industries

EFIXED CONSTRUCTIONS E03Water supply, sewage E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES FLUSHING VALVES THEREFOR E03D1/00Water flushing devices with cisterns; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices

Current Industry

E03D1/056providing an air lock
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2779027
    • Patent number 2,779,027
    • Issue date Jan 29, 1957
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    2744257
    • Patent number 2,744,257
    • Issue date May 8, 1956
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1670370
    • Patent number 1,670,370
    • Issue date May 22, 1928
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1562514
    • Patent number 1,562,514
    • Issue date Nov 24, 1925
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1540890
    • Patent number 1,540,890
    • Issue date Jun 9, 1925
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1382028
    • Patent number 1,382,028
    • Issue date Jun 21, 1921
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1382027
    • Patent number 1,382,027
    • Issue date Jun 21, 1921
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    1152811
    • Patent number 1,152,811
    • Issue date Sep 7, 1915
    • E03 - WATER SUPPLY SEWERAGE