CA343995A - Systeme de central telephonique - Google Patents

Systeme de central telephonique

Info

Publication number
CA343995A
CA343995A CA343995A CA343995DA CA343995A CA 343995 A CA343995 A CA 343995A CA 343995 A CA343995 A CA 343995A CA 343995D A CA343995D A CA 343995DA CA 343995 A CA343995 A CA 343995A
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
CA343995A
Other languages
English (en)
Inventor
Guernsey Dunham Bert
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA343995A publication Critical patent/CA343995A/fr
Expired legal-status Critical Current

Links

CA343995A Systeme de central telephonique Expired CA343995A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA343995T

Publications (1)

Publication Number Publication Date
CA343995A true CA343995A (fr) 1934-08-14

Family

ID=35315268

Family Applications (1)

Application Number Title Priority Date Filing Date
CA343995A Expired CA343995A (fr) Systeme de central telephonique

Country Status (1)

Country Link
CA (1) CA343995A (fr)

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