Toshitake Okada

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Kakogawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mud material used for iron tap hole in blast furnace
- Patent number 5,411,997
- Issue date May 2, 1995
- Shinagawa Rozai Kabushiki Kaisha
- Kengo Ohara
- C21 - METALLURGY OF IRON