CA497642A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA497642A
CA497642A CA497642A CA497642DA CA497642A CA 497642 A CA497642 A CA 497642A CA 497642 A CA497642 A CA 497642A CA 497642D A CA497642D A CA 497642DA CA 497642 A CA497642 A CA 497642A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA497642A
Other languages
English (en)
Inventor
A. Hensler Bernard
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 CA497642A publication Critical patent/CA497642A/fr
Expired legal-status Critical Current

Links

CA497642A Systemes telephoniques Expired CA497642A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA497642T

Publications (1)

Publication Number Publication Date
CA497642A true CA497642A (fr) 1953-11-10

Family

ID=35643073

Family Applications (1)

Application Number Title Priority Date Filing Date
CA497642A Expired CA497642A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA497642A (fr)

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