Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tomohito Abe0
Koji Noma0
Date of Patent
October 31, 2006
Patent Application Number
10611058
Date Filed
July 2, 2003
Patent Primary Examiner
Patent abstract
The respective sections between a power source unit 4 and a room master station 1, between the room master station 1 and an entrance door station 2, and between the entrance door station 2 and an electric lock 3 are connected by transmission lines of two-wire system 6 for transmitting signals and electric power.
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