H - Electricity – 04 – M
Patent
H - Electricity
04
M
379/3
H04M 11/06 (2006.01)
Patent
CA 1131815
A B S T R A C T System and method for transmission of information from locations spread over a large area to a central point where data processing takes place, all locations and said central point having a normally operating telephone connection, wherein each location is equipped with a memory for the temporary recording of the information to be transmitted and in which each memory is equipped with a switching device, which can connect the memory, with the telephone line to the central point with simultaneous blocking of the telephone apparatus present in that location as long as the memory is connected, which switching devices can be activated from the central point via the telephone line by a special signal.
321301
Schoonbrood Jan J.l.r.
Spaargaren Klaas
Verhaagen Caspar
Shell Canada Limited
Smart & Biggar
LandOfFree
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