TREA

Robert P. Callaghan Jr.

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  • Westerly, RI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Long range sliding ball bar test gage
    • Patent number 5,533,271
    • Issue date Jul 9, 1996
    • Robert P. Callaghan
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Height gage
    • Patent number 4,129,949
    • Issue date Dec 19, 1978
    • Brown & Sharpe Manufacturing Company
    • Robert P. Callaghan
    • G01 - MEASURING TESTING