TREA

David T. Allan

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  • Rutherglen, Glasgow, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pneumatic tool
    • Patent number 6,755,260
    • Issue date Jun 29, 2004
    • MacDonald Air Tools Limited
    • David Thomson Allan
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Paving breakers and supports therefor
    • Patent number 5,095,600
    • Issue date Mar 17, 1992
    • David T. Allan
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Scabbler bits
    • Patent number 4,997,050
    • Issue date Mar 5, 1991
    • John MacDonald and Company (Pneumatic Tools) Limited
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Apparatus for scabbling concrete
    • Patent number 4,841,842
    • Issue date Jun 27, 1989
    • John MacDonald & (Pneumatic Tools) Ltd.
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Tool assembly
    • Patent number 4,534,421
    • Issue date Aug 13, 1985
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Control valve assembly
    • Patent number 4,526,190
    • Issue date Jul 2, 1985
    • David T. Allan
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Scabbler bits
    • Patent number 4,502,734
    • Issue date Mar 5, 1985
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Scabbler bit floor surfacing machine
    • Patent number 4,225,187
    • Issue date Sep 30, 1980
    • Allan; David Thomson
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Fluid operated undercutter
    • Patent number 4,186,810
    • Issue date Feb 5, 1980
    • John MacDonald & Company (Pneumatic Tools) Limited
    • David T. Allan
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Fluid operated undercutter
    • Patent number 4,153,121
    • Issue date May 8, 1979
    • John MacDonald & Company (Pneumatic Tools) Ltd.
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Fluid operated wall groove cutter
    • Patent number 4,140,347
    • Issue date Feb 20, 1979
    • John MacDonald & Co. (Pneumatic Tools) Ltd.
    • David T. Allan
    • B28 - WORKING CEMENT, CLAY, OR STONE