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Polishing apparatus
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Patent number 6,413,154
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Issue date Jul 2, 2002
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Ebara Corporation
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Tetsuji Togawa
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B24 - GRINDING POLISHING
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Polishing apparatus
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Patent number 6,319,105
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Issue date Nov 20, 2001
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Ebara Corporation
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Tetsuji Togawa
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B24 - GRINDING POLISHING
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High temperature oxide superconductor
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Patent number 5,468,724
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Issue date Nov 21, 1995
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International Superconductivity Technology Center
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Takahiro Wada
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Superconducting material
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Patent number 5,169,830
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Issue date Dec 8, 1992
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Internationnal Superconductivity Technology Center
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Takahiro Wada
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H01 - BASIC ELECTRIC ELEMENTS
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Moving staircase
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Patent number 4,557,369
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Issue date Dec 10, 1985
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Mitsubishi Denki Kabushiki Kaisha
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Matsuhiko Ishida
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B66 - HOISTING LIFTING HAULING