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CA422195A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA422195A
CA422195A CA422195A CA422195DA CA422195A CA 422195 A CA422195 A CA 422195A CA 422195 A CA422195 A CA 422195A CA 422195D A CA422195D A CA 422195DA CA 422195 A CA422195 A CA 422195A
Authority
CA
Canada
Prior art keywords
telephone system
telephone
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
CA422195A
Other languages
French (fr)
Inventor
Wicks John
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.)
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Original Assignee
Automatic Electric Laboratories Inc
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA422195A publication Critical patent/CA422195A/en
Expired legal-status Critical Current

Links

CA422195A Telephone system Expired CA422195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA422195T

Publications (1)

Publication Number Publication Date
CA422195A true CA422195A (en) 1944-08-22

Family

ID=35533184

Family Applications (1)

Application Number Title Priority Date Filing Date
CA422195A Expired CA422195A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA422195A (en)

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