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Cutting refractory material
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Issue date Oct 5, 1999
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Glaverbel
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Setting member for heating material
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Patent number 5,804,324
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Issue date Sep 8, 1998
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Toshiba Ceramics Co., Ltd.
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Shigeki Niwa
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3450574
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Issue date Jul 26, 1960
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES