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Method of manufacturing superconductor
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Patent number 5,334,578
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Issue date Aug 2, 1994
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Sumitomo Electric Industries, Ltd.
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Maumi Kawashima
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Method for the selecting superconducting powders
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Patent number 5,047,387
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Issue date Sep 10, 1991
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The United States of America as represented by the Secretary of the Navy
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Inna G. Talmy
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B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
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Issue date Jun 20, 1967
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G01 - MEASURING TESTING