CA405758A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA405758A
CA405758A CA405758A CA405758DA CA405758A CA 405758 A CA405758 A CA 405758A CA 405758 A CA405758 A CA 405758A CA 405758D A CA405758D A CA 405758DA CA 405758 A CA405758 A CA 405758A
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
CA405758A
Other languages
English (en)
Inventor
Ernest Lomax Clarence
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 CA405758A publication Critical patent/CA405758A/fr
Expired legal-status Critical Current

Links

CA405758A Systeme telephonique Expired CA405758A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA405758T

Publications (1)

Publication Number Publication Date
CA405758A true CA405758A (fr) 1942-06-30

Family

ID=35417058

Family Applications (1)

Application Number Title Priority Date Filing Date
CA405758A Expired CA405758A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA405758A (fr)

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