Wilhelm Pieper

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Wuppertal, DE

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Patents Grantslast 30 patents

Information Patent Grant
Press for producing machine elements, especially balls, rivets and...
- Patent number 4,208,899
- Issue date Jun 24, 1980
- Gebr. Hilgeland
- Wilhelm Pieper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...