CA301411A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA301411A
CA301411A CA301411A CA301411DA CA301411A CA 301411 A CA301411 A CA 301411A CA 301411 A CA301411 A CA 301411A CA 301411D A CA301411D A CA 301411DA CA 301411 A CA301411 A CA 301411A
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
CA301411A
Other languages
English (en)
Inventor
Oglesby Passmore William
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 CA301411A publication Critical patent/CA301411A/fr
Expired legal-status Critical Current

Links

CA301411A Systeme telephonique Expired CA301411A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA301411T

Publications (1)

Publication Number Publication Date
CA301411A true CA301411A (fr) 1930-06-24

Family

ID=35254557

Family Applications (1)

Application Number Title Priority Date Filing Date
CA301411A Expired CA301411A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA301411A (fr)

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