CA335129A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA335129A
CA335129A CA335129A CA335129DA CA335129A CA 335129 A CA335129 A CA 335129A CA 335129 A CA335129 A CA 335129A CA 335129D A CA335129D A CA 335129DA CA 335129 A CA335129 A CA 335129A
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
CA335129A
Other languages
French (fr)
Inventor
Larimer 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 CA335129A publication Critical patent/CA335129A/en
Expired legal-status Critical Current

Links

CA335129A Telephone exchange system Expired CA335129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA335129T

Publications (1)

Publication Number Publication Date
CA335129A true CA335129A (en) 1933-08-22

Family

ID=35298271

Family Applications (1)

Application Number Title Priority Date Filing Date
CA335129A Expired CA335129A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA335129A (en)

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