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Gerald F. Robertson

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  • Mt. Clemens, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Exhaust gas operated vacuum pump assembly
    • Patent number 4,502,847
    • Issue date Mar 5, 1985
    • General Motors Corporation
    • Donald J. Pozniak
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Exhaust gas operated vacuum pump assembly
    • Patent number 4,502,848
    • Issue date Mar 5, 1985
    • General Motors Corporation
    • Gerald F. Robertson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Exhaust gas operated vacuum pump assembly
    • Patent number 4,479,765
    • Issue date Oct 30, 1984
    • General Motors Corporation
    • Gerald F. Robertson
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS