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Elevator controller
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Patent number 4,979,593
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Issue date Dec 25, 1990
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Mitsubishi Denki Kabushiki Kaisha
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Eiki Watanabe
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B66 - HOISTING LIFTING HAULING
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Diagonal elevator
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Patent number 4,280,593
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Issue date Jul 28, 1981
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W. Michael Moore
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B66 - HOISTING LIFTING HAULING
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Inclined lift
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Patent number 4,026,388
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Issue date May 31, 1977
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Denis C. Creissels
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B66 - HOISTING LIFTING HAULING
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3874523
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Patent number 3,874,523
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Issue date Apr 1, 1975
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B66 - HOISTING LIFTING HAULING
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3831714
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Patent number 3,831,714
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Issue date Aug 27, 1974
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B66 - HOISTING LIFTING HAULING
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3826335
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Patent number 3,826,335
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Issue date Jul 30, 1974
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B66 - HOISTING LIFTING HAULING
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3804269
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Patent number 3,804,269
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Issue date Apr 16, 1974
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B66 - HOISTING LIFTING HAULING
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3722718
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Patent number 3,722,718
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Issue date Mar 27, 1973
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B66 - HOISTING LIFTING HAULING
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3627079
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Patent number 3,627,079
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Issue date Dec 14, 1971
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B66 - HOISTING LIFTING HAULING
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3565216
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Patent number 3,565,216
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Issue date Feb 23, 1971
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B66 - HOISTING LIFTING HAULING
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3517775
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Patent number 3,517,775
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Issue date Jun 30, 1970
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B66 - HOISTING LIFTING HAULING
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3378153
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Patent number 3,378,153
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Issue date Apr 16, 1968
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B66 - HOISTING LIFTING HAULING
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3312307
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Patent number 3,312,307
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Issue date Apr 4, 1967
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B66 - HOISTING LIFTING HAULING