CA498037A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA498037A
CA498037A CA498037A CA498037DA CA498037A CA 498037 A CA498037 A CA 498037A CA 498037 A CA498037 A CA 498037A CA 498037D A CA498037D A CA 498037DA CA 498037 A CA498037 A CA 498037A
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
CA498037A
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 CA498037A publication Critical patent/CA498037A/en
Expired legal-status Critical Current

Links

CA498037A Telephone systems Expired CA498037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA498037T

Publications (1)

Publication Number Publication Date
CA498037A true CA498037A (en) 1953-12-01

Family

ID=35643473

Family Applications (1)

Application Number Title Priority Date Filing Date
CA498037A Expired CA498037A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA498037A (en)

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