CA296466A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA296466A
CA296466A CA296466DA CA296466A CA 296466 A CA296466 A CA 296466A CA 296466D A CA296466D A CA 296466DA CA 296466 A CA296466 A CA 296466A
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
Other languages
English (en)
Inventor
Paul William Dumjohn Frederick
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 CA296466A publication Critical patent/CA296466A/fr
Expired legal-status Critical Current

Links

CA296466D Systeme telephonique Expired CA296466A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA296466T

Publications (1)

Publication Number Publication Date
CA296466A true CA296466A (fr) 1930-01-07

Family

ID=35233784

Family Applications (1)

Application Number Title Priority Date Filing Date
CA296466D Expired CA296466A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA296466A (fr)

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