CA493123A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA493123A
CA493123A CA493123A CA493123DA CA493123A CA 493123 A CA493123 A CA 493123A CA 493123 A CA493123 A CA 493123A CA 493123D A CA493123D A CA 493123DA CA 493123 A CA493123 A CA 493123A
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
CA493123A
Other languages
French (fr)
Inventor
Thomas Baker George
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 Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA493123A publication Critical patent/CA493123A/en
Expired legal-status Critical Current

Links

CA493123A Telephone systems Expired CA493123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA493123T

Publications (1)

Publication Number Publication Date
CA493123A true CA493123A (en) 1953-05-26

Family

ID=35638508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA493123A Expired CA493123A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA493123A (en)

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