CA448255A - Systeme telephonique - Google Patents

Systeme telephonique

Info

Publication number
CA448255A
CA448255A CA448255A CA448255DA CA448255A CA 448255 A CA448255 A CA 448255A CA 448255 A CA448255 A CA 448255A CA 448255D A CA448255D A CA 448255DA CA 448255 A CA448255 A CA 448255A
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
CA448255A
Other languages
English (en)
Inventor
N. Newstedt 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 CA448255A publication Critical patent/CA448255A/fr
Expired legal-status Critical Current

Links

CA448255A Systeme telephonique Expired CA448255A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA448255T

Publications (1)

Publication Number Publication Date
CA448255A true CA448255A (fr) 1948-05-04

Family

ID=35565943

Family Applications (1)

Application Number Title Priority Date Filing Date
CA448255A Expired CA448255A (fr) Systeme telephonique

Country Status (1)

Country Link
CA (1) CA448255A (fr)

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