CA239745A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA239745A
CA239745A CA239745A CA239745DA CA239745A CA 239745 A CA239745 A CA 239745A CA 239745 A CA239745 A CA 239745A CA 239745D A CA239745D A CA 239745DA CA 239745 A CA239745 A CA 239745A
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
CA239745A
Other languages
English (en)
Inventor
P. Albert Walter
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.)
INTERNATIONAL WESTERN ELECTRIC Co
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA239745A publication Critical patent/CA239745A/fr
Expired legal-status Critical Current

Links

CA239745A Systeme telephonique Expired CA239745A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA239745T

Publications (1)

Publication Number Publication Date
CA239745A true CA239745A (fr) 1924-04-29

Family

ID=35143776

Family Applications (1)

Application Number Title Priority Date Filing Date
CA239745A Expired CA239745A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA239745A (fr)

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