CA493484A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA493484A
CA493484A CA493484A CA493484DA CA493484A CA 493484 A CA493484 A CA 493484A CA 493484 A CA493484 A CA 493484A CA 493484D A CA493484D A CA 493484DA CA 493484 A CA493484 A CA 493484A
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
CA493484A
Other languages
French (fr)
Inventor
E. Peterson Seth
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 CA493484A publication Critical patent/CA493484A/en
Expired legal-status Critical Current

Links

CA493484A Telephone system Expired CA493484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA493484T

Publications (1)

Publication Number Publication Date
CA493484A true CA493484A (en) 1953-06-09

Family

ID=35638873

Family Applications (1)

Application Number Title Priority Date Filing Date
CA493484A Expired CA493484A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA493484A (en)

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