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Le Roy Ginn
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San Leandro, CA, US
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last 30 patents
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Patent Grant
System powered reset velocity controller
Patent number
4,291,832
Issue date
Sep 29, 1981
Universal Pneumatic Controls, Inc.
Le Roy D. Ginn
F24 - HEATING RANGES VENTILATING
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Patent Grant
Dual duct variable volume air conditioning system
Patent number
3,934,795
Issue date
Jan 27, 1976
Universal Pneumatic Controls, Inc.
Le Roy Ginn
F24 - HEATING RANGES VENTILATING