CA295180A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA295180A
CA295180A CA295180DA CA295180A CA 295180 A CA295180 A CA 295180A CA 295180D A CA295180D A CA 295180DA CA 295180 A CA295180 A CA 295180A
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
Percy Long Douglas
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 CA295180A publication Critical patent/CA295180A/fr
Expired legal-status Critical Current

Links

CA295180D Systeme telephonique Expired CA295180A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA295180T

Publications (1)

Publication Number Publication Date
CA295180A true CA295180A (fr) 1929-11-26

Family

ID=35232498

Family Applications (1)

Application Number Title Priority Date Filing Date
CA295180D Expired CA295180A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA295180A (fr)

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