CA315745A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA315745A
CA315745A CA315745A CA315745DA CA315745A CA 315745 A CA315745 A CA 315745A CA 315745 A CA315745 A CA 315745A CA 315745D A CA315745D A CA 315745DA CA 315745 A CA315745 A CA 315745A
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
CA315745A
Other languages
English (en)
Inventor
George Patterson William
Adam Christian David
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA315745A publication Critical patent/CA315745A/fr
Expired legal-status Critical Current

Links

CA315745A Systeme telephonique Expired CA315745A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA315745T

Publications (1)

Publication Number Publication Date
CA315745A true CA315745A (fr) 1931-09-29

Family

ID=35275073

Family Applications (1)

Application Number Title Priority Date Filing Date
CA315745A Expired CA315745A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA315745A (fr)

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