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Barry G. Blackaby
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Avon, CT, US
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last 30 patents
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Patent Grant
Fire and security system with multi detector-occupancy-temperature-...
Patent number
4,688,183
Issue date
Aug 18, 1987
United Technologies Corporation
Richard T. Carll
G08 - SIGNALLING
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Patent Grant
Digital PBX integrated workstation security system
Patent number
4,654,640
Issue date
Mar 31, 1987
United Technologies Corporation
Richard T. Carll
G08 - SIGNALLING