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Direct current motor
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Patent number 4,583,016
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Issue date Apr 15, 1986
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Direct current motor
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Patent number 4,447,751
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Issue date May 8, 1984
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Direct current motor
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Patent number 4,437,029
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Issue date Mar 13, 1984
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Direct current motor
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Patent number 4,404,485
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Issue date Sep 13, 1983
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Direct current motor
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Patent number 4,382,214
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Issue date May 3, 1983
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Piston unit
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Patent number 4,342,884
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Issue date Aug 3, 1982
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Itsuki Ban
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Electronic photoflash
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Patent number 4,130,780
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Issue date Dec 19, 1978
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Itsuki Ban
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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