TREA

Graham E. Coombes

Follow

Person

  • Los Altos, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Seismic trigger
    • Patent number 4,587,859
    • Issue date May 13, 1986
    • Graham E. Coombes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seismic trigger
    • Patent number 4,531,533
    • Issue date Jul 30, 1985
    • Graham E. Coombes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...