having self-charging means

Patents Grantslast 30 patents

  • Information Patent Grant

    Washout assembly for cement mixer vehicle

    • Patent number 6,039,468
    • Issue date Mar 21, 2000
    • Dennis Kowalcyzk
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Tractor mounted self-loading concrete mixing apparatus

    • Patent number 4,268,175
    • Issue date May 19, 1981
    • Robert N. Norlie
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Transporter and loading box for concrete mixer

    • Patent number 4,103,352
    • Issue date Jul 25, 1978
    • Astro Development Corporation
    • Charles J. Cratty
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3612491

    • Patent number 3,612,491
    • Issue date Oct 12, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3167307

    • Patent number 3,167,307
    • Issue date Jan 26, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2926796

    • Patent number 2,926,796
    • Issue date Mar 1, 1960
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2703227

    • Patent number 2,703,227
    • Issue date Mar 1, 1955
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2467588

    • Patent number 2,467,588
    • Issue date Apr 19, 1949
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2327473

    • Patent number 2,327,473
    • Issue date Aug 24, 1943
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2322900

    • Patent number 2,322,900
    • Issue date Jun 29, 1943
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2234210

    • Patent number 2,234,210
    • Issue date Mar 11, 1941
    • B28 - WORKING CEMENT, CLAY, OR STONE