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CA420937A - Telephone system - Google Patents

Telephone system

Info

Publication number
CA420937A
CA420937A CA420937A CA420937DA CA420937A CA 420937 A CA420937 A CA 420937A CA 420937 A CA420937 A CA 420937A CA 420937D A CA420937D A CA 420937DA CA 420937 A CA420937 A CA 420937A
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
CA420937A
Other languages
French (fr)
Inventor
Bakker Pier
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 CA420937A publication Critical patent/CA420937A/en
Expired legal-status Critical Current

Links

CA420937A Telephone system Expired CA420937A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA420937T

Publications (1)

Publication Number Publication Date
CA420937A true CA420937A (en) 1944-06-20

Family

ID=35531883

Family Applications (1)

Application Number Title Priority Date Filing Date
CA420937A Expired CA420937A (en) Telephone system

Country Status (1)

Country Link
CA (1) CA420937A (en)

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