Tomonari Ohga

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Chromate surface treated steel sheet
- Patent number 4,842,958
- Issue date Jun 27, 1989
- Nippon Steel Corporation
- Seijun Higuchi
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR