George A. Cooper

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Gollion, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for breaking a hard compact material such as r...
- Patent number 4,114,950
- Issue date Sep 19, 1978
- Institut Cerac SA.
- George Anthony Cooper
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Method and apparatus for breaking hard compact material such as rock
- Patent number 4,099,784
- Issue date Jul 11, 1978
- Institut Cerac SA.
- George A. Cooper
- E21 - EARTH DRILLING MINING