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Toshio Kitamura
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Takasago, JP
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last 30 patents
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Patent Grant
Process for annealing heat fused cast refractory product
Patent number
4,383,963
Issue date
May 17, 1983
Asahi Glass Company Ltd.
Koji Ohashi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Spinel type fused refractory product
Patent number
4,348,485
Issue date
Sep 7, 1982
Asahi Glass Company, Ltd.
Koji Oohasi
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES