Masao Annaka

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Kobe, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sealing mechanism for bearings
- Patent number 4,449,717
- Issue date May 22, 1984
- Mutsubishi Rubber Co., Ltd.
- Michio Kitawaki
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...