Assignee

SYGNUS CONTROLS INC

US·1 granted patent·164 citations·filing 1990–1990

Technology mixG08B1 H04M1 H04N1

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0190US5225997AAutomatic monitoring and remote reporting deviceSYGNUS CONTROLS INC·Filed 1990·Granted Jul 6, 1993·164 cites·24 claims

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