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Carrier frequency shift signaling
US 2,451,430 A
Filed
: 04/23/1946
Issued
: 10/12/1948
Est. Priority Date
: 04/23/1946
Status: Expired due to Term
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Current Assignee
Salvatore A. Barone
Original Assignee
Salvatore A. Barone
Inventors
Barone, Salvatore A.
Application Number
US02/664,168
Time in Patent Office
903 Days
Field of Search
US Class Current
375/307
CPC Class Codes
H03C 3/14
simulated by circuit compri...
H04L 27/12
Modulator circuits; Transmi...
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