TREA

Harper Buffing Machine Co.

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Organization

  • East Hartford, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Barrel-finishing apparatus
    • Patent number 4,308,693
    • Issue date Jan 5, 1982
    • Harper Buffing Machine Co.
    • John F. Harper
    • B24 - GRINDING POLISHING