TREA

Austin Hoy and Company, Ltd.

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Patents Grantslast 30 patents

  • Information Patent Grant

    Socketed boss having means for retaining a tool shank
    • Patent number 4,274,678
    • Issue date Jun 23, 1981
    • Austin Hoy and Company Limited
    • Frederick Herridge
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Securing means for machine parts
    • Patent number 4,094,611
    • Issue date Jun 13, 1978
    • Austin Hoy and Company, Ltd.
    • John A. Harper
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mineral cutter chains
    • Patent number 4,068,896
    • Issue date Jan 17, 1978
    • Austin Hoy and Company Limited
    • Sidney Ernest Proctor
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Bottom unloader for a storage container
    • Patent number 4,003,481
    • Issue date Jan 18, 1977
    • Austin Hoy and Company Limited
    • Sidney Ernest Proctor
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Patents Applicationslast 30 patents

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