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http://www.google.com/patents/US2313209?utm_source=gb-gplus-share
Patent US2313209 - COMMUNICATION SYSTEM
COMMUNICATION SYSTEM
G. VALENSI et al
› Overview
Abstract
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Description
Claims
Patent number
: 2313209
Filing date
: Nov 17, 1939
Issue date
: Mar 9, 1943
Inventors
:
G. VALENSI
,
G. VALENSI
Current U.S. Classification
:
370/214
;
370/273
;
370/533
;
370/534
;
380/33
View patent at USPTO
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Referenced by
Citing Patent
Filing date
Issue date
Original Assignee
Title
US4173025
Jan 18, 1946
Oct 30, 1979
Electrical signal scrambling apparatus
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