TREA

The J. R. Clarkson Company

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Organization

  • Palo Alto, CA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Packingless gate valve and actuator assemblies
    • Patent number 4,007,911
    • Issue date Feb 15, 1977
    • The J. R. Clarkson Company
    • Curtis W. Clarkson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Packingless gate valve and actuator assemblies
    • Patent number 3,945,604
    • Issue date Mar 23, 1976
    • The J. R. Clarkson Company
    • Curtis W. Clarkson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks