Kozi Akiyama

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Joyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Device for making recording disc cartridge
- Patent number 4,391,669
- Issue date Jul 5, 1983
- Hitachi Maxell, Ltd.
- Tohru Yamakawa
- B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD