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Richard E. Watt
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La Mesa, CA, US
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last 30 patents
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Patent Grant
Elevator position sensing system using coded vertical tape
Patent number
5,135,081
Issue date
Aug 4, 1992
United States Elevator Corp.
Richard E. Watt
B66 - HOISTING LIFTING HAULING
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Patent Grant
Elevator control and indicator device
Patent number
4,951,787
Issue date
Aug 28, 1990
U.S. Elevator, Corporation
Larry W. Lind
B66 - HOISTING LIFTING HAULING
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Patent Grant
Elevator control switch and position indicator assembly
Patent number
4,805,739
Issue date
Feb 21, 1989
U.S. Elevator Corporation
Larry W. Lind
B66 - HOISTING LIFTING HAULING