CA493889A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA493889A
CA493889A CA493889A CA493889DA CA493889A CA 493889 A CA493889 A CA 493889A CA 493889 A CA493889 A CA 493889A CA 493889D A CA493889D A CA 493889DA CA 493889 A CA493889 A CA 493889A
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
CA493889A
Other languages
French (fr)
Inventor
Gohorel Fernand
J. M. Penet Gabriel
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA493889A publication Critical patent/CA493889A/en
Expired legal-status Critical Current

Links

CA493889A Telephone systems Expired CA493889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA493889T

Publications (1)

Publication Number Publication Date
CA493889A true CA493889A (en) 1953-06-23

Family

ID=35639282

Family Applications (1)

Application Number Title Priority Date Filing Date
CA493889A Expired CA493889A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA493889A (en)

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