combined with vibrating or other additional compacting means

Patents Grantslast 30 patents

  • Information Patent Grant

    Concrete pipe machine

    • Patent number 4,600,373
    • Issue date Jul 15, 1986
    • GHA Lock Joint, Inc.
    • Harold V. Swanson
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method of making prestressed concrete poles, tubes, and support col...

    • Patent number 4,247,516
    • Issue date Jan 27, 1981
    • Top Roc Precast Corporation
    • Burton D. Morgan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3304591

    • Patent number 3,304,591
    • Issue date Feb 21, 1967
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3012298

    • Patent number 3,012,298
    • Issue date Dec 12, 1961
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2965947

    • Patent number 2,965,947
    • Issue date Dec 27, 1960
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2850784

    • Patent number 2,850,784
    • Issue date Sep 9, 1958
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2839278

    • Patent number 2,839,278
    • Issue date Jun 17, 1958
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2822598

    • Patent number 2,822,598
    • Issue date Feb 11, 1958
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2735153

    • Patent number 2,735,153
    • Issue date Feb 21, 1956
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2724582

    • Patent number 2,724,582
    • Issue date Nov 22, 1955
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2703916

    • Patent number 2,703,916
    • Issue date Mar 15, 1955
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2222889

    • Patent number 2,222,889
    • Issue date Nov 26, 1940
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2038861

    • Patent number 2,038,861
    • Issue date Apr 28, 1936
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1979415

    • Patent number 1,979,415
    • Issue date Nov 6, 1934
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1954904

    • Patent number 1,954,904
    • Issue date Apr 17, 1934
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1789742

    • Patent number 1,789,742
    • Issue date Jan 20, 1931
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1786586

    • Patent number 1,786,586
    • Issue date Dec 30, 1930
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1579561

    • Patent number 1,579,561
    • Issue date Apr 6, 1926
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1562551

    • Patent number 1,562,551
    • Issue date Nov 24, 1925
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1544879

    • Patent number 1,544,879
    • Issue date Jul 7, 1925
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1532407

    • Patent number 1,532,407
    • Issue date Apr 7, 1925
    • B28 - WORKING CEMENT, CLAY, OR STONE