CA459993A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA459993A
CA459993A CA459993DA CA459993A CA 459993 A CA459993 A CA 459993A CA 459993D A CA459993D A CA 459993DA CA 459993 A CA459993 A CA 459993A
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
Westall Durkin Eric
Leonard Peters Charles
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 CA459993A publication Critical patent/CA459993A/fr
Expired legal-status Critical Current

Links

CA459993D Systeme telephonique Expired CA459993A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA459993T

Publications (1)

Publication Number Publication Date
CA459993A true CA459993A (fr) 1949-09-27

Family

ID=35578905

Family Applications (1)

Application Number Title Priority Date Filing Date
CA459993D Expired CA459993A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA459993A (fr)

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