CA229166A - Systeme d'echange telephonique - Google Patents

Systeme d'echange telephonique

Info

Publication number
CA229166A
CA229166A CA229166A CA229166DA CA229166A CA 229166 A CA229166 A CA 229166A CA 229166 A CA229166 A CA 229166A CA 229166D A CA229166D A CA 229166DA CA 229166 A CA229166 A CA 229166A
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
CA229166A
Other languages
English (en)
Inventor
L. Temple David
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 CA229166A publication Critical patent/CA229166A/fr
Expired legal-status Critical Current

Links

CA229166A Systeme d'echange telephonique Expired CA229166A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA229166T

Publications (1)

Publication Number Publication Date
CA229166A true CA229166A (fr) 1923-02-27

Family

ID=35126539

Family Applications (1)

Application Number Title Priority Date Filing Date
CA229166A Expired CA229166A (fr) Systeme d'echange telephonique

Country Status (1)

Country Link
CA (1) CA229166A (fr)

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