CA410075A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA410075A
CA410075A CA410075A CA410075DA CA410075A CA 410075 A CA410075 A CA 410075A CA 410075 A CA410075 A CA 410075A CA 410075D A CA410075D A CA 410075DA CA 410075 A CA410075 A CA 410075A
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
CA410075A
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 CA410075A publication Critical patent/CA410075A/fr
Expired legal-status Critical Current

Links

CA410075A Systeme telephonique Expired CA410075A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA410075T

Publications (1)

Publication Number Publication Date
CA410075A true CA410075A (fr) 1943-01-19

Family

ID=35421377

Family Applications (1)

Application Number Title Priority Date Filing Date
CA410075A Expired CA410075A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA410075A (fr)

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