CA405759A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA405759A
CA405759A CA405759A CA405759DA CA405759A CA 405759 A CA405759 A CA 405759A CA 405759 A CA405759 A CA 405759A CA 405759D A CA405759D A CA 405759DA CA 405759 A CA405759 A CA 405759A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA405759A
Other languages
English (en)
Inventor
D. Willis Bernard
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA405759A publication Critical patent/CA405759A/fr
Expired legal-status Critical Current

Links

CA405759A Systeme telephonique Expired CA405759A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA405759T

Publications (1)

Publication Number Publication Date
CA405759A true CA405759A (fr) 1942-06-30

Family

ID=35417059

Family Applications (1)

Application Number Title Priority Date Filing Date
CA405759A Expired CA405759A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA405759A (fr)

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