CA441179A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA441179A
CA441179A CA441179A CA441179DA CA441179A CA 441179 A CA441179 A CA 441179A CA 441179 A CA441179 A CA 441179A CA 441179D A CA441179D A CA 441179DA CA 441179 A CA441179 A CA 441179A
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
CA441179A
Other languages
French (fr)
Inventor
Ellis Ostline 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
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA441179A publication Critical patent/CA441179A/en
Expired legal-status Critical Current

Links

CA441179A Telephone system Expired CA441179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA441179T

Publications (1)

Publication Number Publication Date
CA441179A true CA441179A (en) 1947-05-06

Family

ID=35556411

Family Applications (1)

Application Number Title Priority Date Filing Date
CA441179A Expired CA441179A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA441179A (en)

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