Jean-Paul Denisart

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Lutry, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method for breaking rock by directing high velocity jet into pre-dr...
- Patent number 4,103,971
- Issue date Aug 1, 1978
- Atlas Copco Aktiebolag
- Jean-Paul Denisart
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Method of breaking a hard compact material, means for carrying out...
- Patent number 3,988,037
- Issue date Oct 26, 1976
- Institut Cerac SA
- Jean-Paul Denisart
- E21 - EARTH DRILLING MINING