with rotating mixing tools

Patents Grantslast 30 patents

  • Information Patent Grant

    Mixing machine

    • Patent number 9,931,765
    • Issue date Apr 3, 2018
    • James Okeefe
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1628632

    • Patent number 1,628,632
    • Issue date May 10, 1927
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents