CA224515A - Systeme d'echange telephonique a commutation mecanique - Google Patents

Systeme d'echange telephonique a commutation mecanique

Info

Publication number
CA224515A
CA224515A CA224515A CA224515DA CA224515A CA 224515 A CA224515 A CA 224515A CA 224515 A CA224515 A CA 224515A CA 224515D A CA224515D A CA 224515DA CA 224515 A CA224515 A CA 224515A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
machine switching
switching telephone
machine
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
CA224515A
Other languages
English (en)
Inventor
L. Stokely Ray
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 CA224515A publication Critical patent/CA224515A/fr
Expired legal-status Critical Current

Links

CA224515A Systeme d'echange telephonique a commutation mecanique Expired CA224515A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA224515T

Publications (1)

Publication Number Publication Date
CA224515A true CA224515A (fr) 1922-10-03

Family

ID=35120118

Family Applications (1)

Application Number Title Priority Date Filing Date
CA224515A Expired CA224515A (fr) Systeme d'echange telephonique a commutation mecanique

Country Status (1)

Country Link
CA (1) CA224515A (fr)

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