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Elevator door restrictor
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Patent number 6,006,866
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Issue date Dec 28, 1999
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Advanced Microcontrols, Inc.
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Gregory L. Horne
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B66 - HOISTING LIFTING HAULING
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Elevator door restrictor
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Patent number 5,896,953
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Issue date Apr 27, 1999
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Advanced Microcontrols, Inc.
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Gregory L. Horne
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B66 - HOISTING LIFTING HAULING
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Elevator door restrictor
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Patent number 5,655,627
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Issue date Aug 12, 1997
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Advanced Microcontrols, Inc.
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Gregory L. Horne
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B66 - HOISTING LIFTING HAULING