Jean-Pierre Richard

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Le Mans, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method for making easy-open lids with improved scoring
- Patent number 6,004,089
- Issue date Dec 21, 1999
- Impress Metal Packaging S.A.
- Jean-Marc Legresy
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...