CA491104A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA491104A
CA491104A CA491104A CA491104DA CA491104A CA 491104 A CA491104 A CA 491104A CA 491104 A CA491104 A CA 491104A CA 491104D A CA491104D A CA 491104DA CA 491104 A CA491104 A CA 491104A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA491104A
Other languages
French (fr)
Inventor
F. Stehlik Rudolph
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 CA491104A publication Critical patent/CA491104A/en
Expired legal-status Critical Current

Links

CA491104A Telephone systems Expired CA491104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA491104T

Publications (1)

Publication Number Publication Date
CA491104A true CA491104A (en) 1953-03-10

Family

ID=35630844

Family Applications (1)

Application Number Title Priority Date Filing Date
CA491104A Expired CA491104A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA491104A (en)

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