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Patents Grantslast 30 patents

Information Patent Grant
Method for producing rollers and sleeves for chains
- Patent number 7,472,538
- Issue date Jan 6, 2009
- Schaeffler KG
- Joachim Spörrer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method for producing rollers and sleeves for chains
- Publication number 20080072563
- Publication date Mar 27, 2008
- LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KG
- Joachim Sporrer
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...