Frederic E. Marcel

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Verneuil.En.Halatte, FR

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Patents Grantslast 30 patents

Information Patent Grant
Sound-proofing casing for a pneumatic percussive drill
- Patent number 4,624,339
- Issue date Nov 25, 1986
- Charbonnages de France
- Frederic E. Marcel
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Drill soundproofing device
- Patent number 4,591,009
- Issue date May 27, 1986
- Charbonnages de France
- Frederic E. Marcel
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS