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Elevator control apparatus
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Patent number 5,025,896
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Issue date Jun 25, 1991
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Hitachi, Ltd.
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Noboru Arabori
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B66 - HOISTING LIFTING HAULING
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Elevator apparatus
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Patent number 4,982,815
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Issue date Jan 8, 1991
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Hitachi, Ltd.
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Noboru Arabori
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B60 - VEHICLES IN GENERAL
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Elevator control apparatus
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Patent number 4,773,508
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Issue date Sep 27, 1988
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Hitachi, Ltd.
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Toshisuke Mine
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B66 - HOISTING LIFTING HAULING