CA332378A - Systeme secret de signalisation - Google Patents

Systeme secret de signalisation

Info

Publication number
CA332378A
CA332378A CA332378A CA332378DA CA332378A CA 332378 A CA332378 A CA 332378A CA 332378 A CA332378 A CA 332378A CA 332378D A CA332378D A CA 332378DA CA 332378 A CA332378 A CA 332378A
Authority
CA
Canada
Prior art keywords
signaling system
secret signaling
secret
signaling
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
CA332378A
Other languages
English (en)
Inventor
William Chesnut Roy
John Fisher Harold
John Sanial Arthur
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.)
AT&T Inc
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA332378A publication Critical patent/CA332378A/fr
Expired legal-status Critical Current

Links

CA332378A Systeme secret de signalisation Expired CA332378A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA332378T

Publications (1)

Publication Number Publication Date
CA332378A true CA332378A (fr) 1933-05-09

Family

ID=35294748

Family Applications (1)

Application Number Title Priority Date Filing Date
CA332378A Expired CA332378A (fr) Systeme secret de signalisation

Country Status (1)

Country Link
CA (1) CA332378A (fr)

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