TREA

Joseph A. Holroyd

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  • Nabnasset, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blood filming process
    • Patent number 4,197,329
    • Issue date Apr 8, 1980
    • Dynatech Corporation
    • Joseph A. Holroyd
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Blood filming apparatus
    • Patent number 4,108,109
    • Issue date Aug 22, 1978
    • Dynatech Corporation
    • J. P. Barger
    • G01 - MEASURING TESTING