by applying vacuum or vacuum combined with vibration

Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum treatment unit

    • Patent number 4,266,581
    • Issue date May 12, 1981
    • Tremix AB
    • Harald S. Wenander
    • E04 - BUILDING
  • Information Patent Grant

    Apparatus for vacuum processing of concrete

    • Patent number 4,203,714
    • Issue date May 20, 1980
    • Tremix AB
    • Harald S. Wenander
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3600771

    • Patent number 3,600,771
    • Issue date Aug 24, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3506747

    • Patent number 3,506,747
    • Issue date Apr 14, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2167200

    • Patent number 2,167,200
    • Issue date Jul 25, 1939
    • E04 - BUILDING
  • Information Patent Grant

    1989409

    • Patent number 1,989,409
    • Issue date Jan 29, 1935
    • E04 - BUILDING
  • Information Patent Grant

    1362069

    • Patent number 1,362,069
    • Issue date Dec 14, 1920
    • E04 - BUILDING