Keigo Okubo

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Patents Grantslast 30 patents

Information Patent Grant
Electrolytically producing anodic oxidation coat on Al or Al alloy
- Patent number 4,571,287
- Issue date Feb 18, 1986
- Nagano Prefecture
- Keigo Okubo
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR