Geoffrey J. Crask

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Santa Ana, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Keyboard assembly with controllable key legends
- Patent number 4,280,121
- Issue date Jul 21, 1981
- Geoffrey J. Crask
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Tilt detector and system
- Patent number 4,044,473
- Issue date Aug 30, 1977
- Hydril Company
- Geoffrey J. Crask
- E21 - EARTH DRILLING MINING