CA202321A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA202321A
CA202321A CA202321A CA202321DA CA202321A CA 202321 A CA202321 A CA 202321A CA 202321 A CA202321 A CA 202321A CA 202321D A CA202321D A CA 202321DA CA 202321 A CA202321 A CA 202321A
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
CA202321A
Other languages
English (en)
Inventor
Charles Bygrave Leonard
M. Inman Thomas
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.)
Relay Automatic Telephone Company Ltd
Original Assignee
Relay Automatic Telephone Company Ltd
Publication date
Application granted granted Critical
Publication of CA202321A publication Critical patent/CA202321A/fr
Expired legal-status Critical Current

Links

CA202321A Systeme telephonique Expired CA202321A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA202321T

Publications (1)

Publication Number Publication Date
CA202321A true CA202321A (fr) 1920-07-27

Family

ID=35076757

Family Applications (1)

Application Number Title Priority Date Filing Date
CA202321A Expired CA202321A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA202321A (fr)

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