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CENTRAL TO REMOTE STATION SIGNALLING SYSTEM
US 3,445,815 A
Filed
: 09/27/1965
Issued
: 05/20/1969
Est. Priority Date
: 09/27/1965
Status: Expired due to Term
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Current Assignee
Richard N. Terry
,
Theodore Saltzberg
Original Assignee
Richard N. Terry
,
Theodore Saltzberg
Inventors
Saltzberg, Theodore
,
Terry, Richard N.
Application Number
US04/490,353
Time in Patent Office
1,331 Days
Field of Search
US Class Current
340/10.3
CPC Class Codes
H04Q 9/14
Calling by using pulses
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