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Water-permeable ceramic material
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Patent number 4,954,460
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Issue date Sep 4, 1990
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Mino Yogyo Co., Ltd.
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Fumikazu Tanemura
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Basic refractory composition
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Patent number 4,849,383
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Issue date Jul 18, 1989
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Mino Yogyo Company, Ltd.
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Fumikazu Tanemura
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Spinel-magnesia basic brick
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Patent number 4,389,492
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Issue date Jun 21, 1983
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Mino Yogyo Co., Ltd.
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Fumikazu Tanemura
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES