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Combination telephone switch and dial
US 2,794,861 A
Filed
: 03/31/1954
Issued
: 06/04/1957
Est. Priority Date
: 01/19/1954
Status: Expired due to Term
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Current Assignee
Bruno Heine
Original Assignee
Bruno Heine
Inventors
Heine, Bruno
Application Number
US03/420,172
Time in Patent Office
1,161 Days
Field of Search
US Class Current
379/365
CPC Class Codes
H04M 1/52
Arrangements wherein a dial...
H04M 9/002
with subscriber controlled ...
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