Yasufumi Uozumi

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Saitama, JP

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Patents Applicationslast 30 patents

Information Patent Application
METHOD OF MANUFACTURING RING-SHAPED MEMBER, BACKUP RING AND SEAL ST...
- Publication number 20090121442
- Publication date May 14, 2009
- Yasufumi Uozumi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...