CA295199A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA295199A
CA295199A CA295199A CA295199DA CA295199A CA 295199 A CA295199 A CA 295199A CA 295199 A CA295199 A CA 295199A CA 295199D A CA295199D A CA 295199DA CA 295199 A CA295199 A CA 295199A
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
CA295199A
Other languages
French (fr)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA295199A publication Critical patent/CA295199A/en
Expired legal-status Critical Current

Links

CA295199A Telephone exchange system Expired CA295199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA295199T

Publications (1)

Publication Number Publication Date
CA295199A true CA295199A (en) 1929-11-26

Family

ID=35232517

Family Applications (1)

Application Number Title Priority Date Filing Date
CA295199A Expired CA295199A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA295199A (en)

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