CA237447A - Emission a frequence de la voix - Google Patents

Emission a frequence de la voix

Info

Publication number
CA237447A
CA237447A CA237447A CA237447DA CA237447A CA 237447 A CA237447 A CA 237447A CA 237447 A CA237447 A CA 237447A CA 237447D A CA237447D A CA 237447DA CA 237447 A CA237447 A CA 237447A
Authority
CA
Canada
Prior art keywords
voice frequency
frequency signalling
signalling
voice
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA237447A
Other languages
English (en)
Inventor
K. Cannett Danforth
B. Clark Alva
Nyquist Harry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INTERNATIONAL WESTERN ELECTRIC Co
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA237447A publication Critical patent/CA237447A/fr
Expired legal-status Critical Current

Links

CA237447A Emission a frequence de la voix Expired CA237447A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA237447T

Publications (1)

Publication Number Publication Date
CA237447A true CA237447A (fr) 1924-01-29

Family

ID=35141475

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237447A Expired CA237447A (fr) Emission a frequence de la voix

Country Status (1)

Country Link
CA (1) CA237447A (fr)

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