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Solder removing apparatus
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Patent number 6,325,270
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Issue date Dec 4, 2001
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Hitachi, Ltd.
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Takeshi Kuroda
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Soldering method
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Patent number 5,709,338
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Issue date Jan 20, 1998
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Hitachi, Ltd.
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Mitugu Shirai
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Method for cooling rolled steels
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Patent number 4,786,338
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Issue date Nov 22, 1988
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Norio Anzawa
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Gas-insulated switchgear equipment
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Patent number 4,570,202
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Issue date Feb 11, 1986
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Hitachi, Ltd.
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Isao Nishida
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Gas-insulated switchgear equipment
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Patent number 4,535,383
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Issue date Aug 13, 1985
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Hitachi, Ltd.
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Yukinori Yamaoka
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Gas insulated switchgear equipment
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Patent number 4,503,481
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Issue date Mar 5, 1985
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Hitachi, Ltd.
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Sigeru Fujiya
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Gas circuit breaker
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Patent number 4,365,126
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Issue date Dec 21, 1982
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Hitachi, Ltd.
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Masabumi Oshima
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H01 - BASIC ELECTRIC ELEMENTS
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