CA310352A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA310352A
CA310352A CA310352A CA310352DA CA310352A CA 310352 A CA310352 A CA 310352A CA 310352 A CA310352 A CA 310352A CA 310352D A CA310352D A CA 310352DA CA 310352 A CA310352 A CA 310352A
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
CA310352A
Other languages
French (fr)
Inventor
Henry Paulett William
Gillings Charles
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA310352A publication Critical patent/CA310352A/en
Expired legal-status Critical Current

Links

CA310352A Telephone system Expired CA310352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA310352T

Publications (1)

Publication Number Publication Date
CA310352A true CA310352A (en) 1931-04-14

Family

ID=35269676

Family Applications (1)

Application Number Title Priority Date Filing Date
CA310352A Expired CA310352A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA310352A (en)

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