Senzaburo Hirano

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shroud for steel making electric-arc furnace
- Patent number 4,395,023
- Issue date Jul 26, 1983
- Ishikawajima-Harima Jukogyo Kabushiki Kaisha
- Fumio Tomizawa
- C21 - METALLURGY OF IRON