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Harry V. Nguyen
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St. Petersburg, FL, US
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last 30 patents
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Patent Grant
Automatic door safety system
Patent number
4,914,859
Issue date
Apr 10, 1990
Lanson Electronics, Inc.
Daniel C. Gionet
B66 - HOISTING LIFTING HAULING
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Patent Grant
Automatic door object sensing system
Patent number
4,577,437
Issue date
Mar 25, 1986
Lanson Electronics, Inc.
Daniel C. Gionet
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES