CA503239A - Appareil de sous-centrale de telephone - Google Patents

Appareil de sous-centrale de telephone

Info

Publication number
CA503239A
CA503239A CA503239A CA503239DA CA503239A CA 503239 A CA503239 A CA 503239A CA 503239 A CA503239 A CA 503239A CA 503239D A CA503239D A CA 503239DA CA 503239 A CA503239 A CA 503239A
Authority
CA
Canada
Prior art keywords
substation apparatus
telephone substation
telephone
substation
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
CA503239A
Other languages
English (en)
Inventor
E. Mott Edward
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 CA503239A publication Critical patent/CA503239A/fr
Expired legal-status Critical Current

Links

CA503239A Appareil de sous-centrale de telephone Expired CA503239A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA503239T

Publications (1)

Publication Number Publication Date
CA503239A true CA503239A (fr) 1954-05-25

Family

ID=35649148

Family Applications (1)

Application Number Title Priority Date Filing Date
CA503239A Expired CA503239A (fr) Appareil de sous-centrale de telephone

Country Status (1)

Country Link
CA (1) CA503239A (fr)

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