CA445441A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA445441A
CA445441A CA445441A CA445441DA CA445441A CA 445441 A CA445441 A CA 445441A CA 445441 A CA445441 A CA 445441A CA 445441D A CA445441D A CA 445441DA CA 445441 A CA445441 A CA 445441A
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
CA445441A
Other languages
French (fr)
Inventor
Denton Lawrence
G. Evers Harry
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
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA445441A publication Critical patent/CA445441A/en
Expired legal-status Critical Current

Links

CA445441A Telephone system Expired CA445441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA445441T

Publications (1)

Publication Number Publication Date
CA445441A true CA445441A (en) 1947-12-09

Family

ID=35563096

Family Applications (1)

Application Number Title Priority Date Filing Date
CA445441A Expired CA445441A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA445441A (en)

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