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Addison W. Langill Jr.

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  • Balboa, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Digital fluid flow control system
    • Patent number 4,356,840
    • Issue date Nov 2, 1982
    • Powell Industries, Inc.
    • Harry Friedland
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Digital fluid flow control apparatus
    • Patent number 4,248,263
    • Issue date Feb 3, 1981
    • Powell Industries, Inc.
    • Addison W. Langill
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Digital fluid flow control system
    • Patent number 4,244,396
    • Issue date Jan 13, 1981
    • Powell Industries, Inc.
    • Harry Friedland
    • G05 - CONTROLLING REGULATING