Michel Petitfrere

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Fleury, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing rollers for agricultural machines
- Patent number 6,044,556
- Issue date Apr 4, 2000
- Claas KGaA
- Michel Petitfrere
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...