CA200415A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA200415A
CA200415A CA200415A CA200415DA CA200415A CA 200415 A CA200415 A CA 200415A CA 200415 A CA200415 A CA 200415A CA 200415D A CA200415D A CA 200415DA CA 200415 A CA200415 A CA 200415A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
telephone
exchange
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
CA200415A
Other languages
English (en)
Inventor
T. Powell Winfred
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 CO
AT&T Corp
Original Assignee
INTERNATIONAL WESTERN CO
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA200415A publication Critical patent/CA200415A/fr
Expired legal-status Critical Current

Links

CA200415A Systeme d'echange telephonique Expired CA200415A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA200415T

Publications (1)

Publication Number Publication Date
CA200415A true CA200415A (fr) 1920-05-25

Family

ID=35074852

Family Applications (1)

Application Number Title Priority Date Filing Date
CA200415A Expired CA200415A (fr) Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA200415A (fr)

Similar Documents

Publication Publication Date Title
CA200415A (fr) Systeme d'echange telephonique
CA196183A (fr) Systeme d'echange telephonique
CA196184A (fr) Systeme d'echange telephonique
CA196185A (fr) Systeme d'echange telephonique
CA196187A (fr) Systeme d'echange telephonique
CA196962A (fr) Systeme d'echange telephonique
CA197356A (fr) Systeme d'echange telephonique
CA198118A (fr) Systeme d'echange telephonique
CA198119A (fr) Systeme d'echange telephonique
CA198357A (fr) Systeme d'echange telephonique
CA200074A (fr) Systeme d'echange telephonique
CA201287A (fr) Systeme d'echange telephonique
CA203582A (fr) Systeme d'echange telephonique
CA206116A (fr) Systeme d'echange telephonique
CA196182A (fr) Systeme telephonique
CA196385A (fr) Systeme telephonique
CA196444A (fr) Systeme telephonique
CA196447A (fr) Systeme telephonique
CA196687A (fr) Systeme telephonique
CA196695A (fr) Systeme telephonique
CA196801A (fr) Systeme telephonique
CA196960A (fr) Systeme telephonique
CA196963A (fr) Systeme telephonique
CA196964A (fr) Systeme telephonique
CA197774A (fr) Systeme telephonique