CA509545A - Automatic telephone system - Google Patents

Automatic telephone system

Info

Publication number
CA509545A
CA509545A CA509545A CA509545DA CA509545A CA 509545 A CA509545 A CA 509545A CA 509545 A CA509545 A CA 509545A CA 509545D A CA509545D A CA 509545DA CA 509545 A CA509545 A CA 509545A
Authority
CA
Canada
Prior art keywords
telephone system
automatic telephone
automatic
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
CA509545A
Other languages
French (fr)
Inventor
T. Powell Winfred
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.)
STROMBERG-CARLSON Co
Original Assignee
STROMBERG-CARLSON Co
Publication date
Application granted granted Critical
Publication of CA509545A publication Critical patent/CA509545A/en
Expired legal-status Critical Current

Links

CA509545A Automatic telephone system Expired CA509545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA509545T

Publications (1)

Publication Number Publication Date
CA509545A true CA509545A (en) 1955-01-25

Family

ID=35660597

Family Applications (1)

Application Number Title Priority Date Filing Date
CA509545A Expired CA509545A (en) Automatic telephone system

Country Status (1)

Country Link
CA (1) CA509545A (en)

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