CA338908A - Telephone exchange system - Google Patents

Telephone exchange system

Info

Publication number
CA338908A
CA338908A CA338908A CA338908DA CA338908A CA 338908 A CA338908 A CA 338908A CA 338908 A CA338908 A CA 338908A CA 338908D A CA338908D A CA 338908DA CA 338908 A CA338908 A CA 338908A
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
CA338908A
Other languages
French (fr)
Inventor
Early Hague Alfred
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 CA338908A publication Critical patent/CA338908A/en
Expired legal-status Critical Current

Links

CA338908A Telephone exchange system Expired CA338908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA338908T

Publications (1)

Publication Number Publication Date
CA338908A true CA338908A (en) 1934-01-23

Family

ID=35302049

Family Applications (1)

Application Number Title Priority Date Filing Date
CA338908A Expired CA338908A (en) Telephone exchange system

Country Status (1)

Country Link
CA (1) CA338908A (en)

Similar Documents

Publication Publication Date Title
CA338908A (en) Telephone exchange system
CA338906A (en) Telephone exchange system
CA339280A (en) Telephone exchange system
CA340821A (en) Telephone exchange system
CA343995A (en) Telephone exchange system
CA346417A (en) Telephone exchange system
CA347051A (en) Telephone system
CA338544A (en) Telephone system
CA338545A (en) Telephone system
CA338871A (en) Telephone system
CA338911A (en) Telephone system
CA338914A (en) Telephone system
CA339281A (en) Telephone system
CA339640A (en) Telephone system
CA339641A (en) Telephone system
CA339698A (en) Telephone system
CA339872A (en) Telephone system
CA340000A (en) Telephone system
CA340435A (en) Telephone system
CA340474A (en) Telephone system
CA340800A (en) Telephone system
CA340822A (en) Telephone system
CA341154A (en) Telephone system
CA341701A (en) Telephone system
CA341840A (en) Telephone system