TREA

Alfred W. Christian

Follow

Person

  • Woodstock, CA
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Packerhead and core control system
    • Patent number 4,253,814
    • Issue date Mar 3, 1981
    • Hydrotile Canada Limited
    • Alfred W. Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Structure for directing concrete to pipe jacket
    • Patent number 4,248,580
    • Issue date Feb 3, 1981
    • Hydrotile Canada Limited
    • Alfred W. Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Pallet Positioner
    • Patent number 4,226,568
    • Issue date Oct 7, 1980
    • Hydrotile Canada Limited
    • Alfred W. Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Bell packer for a pair of pallets
    • Patent number 4,197,074
    • Issue date Apr 8, 1980
    • Hydrotile Canada Limited
    • Alfred W. Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Plural molds with common actuating means
    • Patent number 4,134,568
    • Issue date Jan 16, 1979
    • Hydrotile Canada Limited
    • Alfred W. Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Packerhead pipe making machine
    • Patent number 4,118,165
    • Issue date Oct 3, 1978
    • Hydrotile Canada Limited
    • Alfred Christian
    • B28 - WORKING CEMENT, CLAY, OR STONE