CA481226A - Systeme automatique de telephone - Google Patents

Systeme automatique de telephone

Info

Publication number
CA481226A
CA481226A CA481226A CA481226DA CA481226A CA 481226 A CA481226 A CA 481226A CA 481226 A CA481226 A CA 481226A CA 481226D A CA481226D A CA 481226DA CA 481226 A CA481226 A CA 481226A
Authority
CA
Canada
Prior art keywords
detecting systems
line class
class detecting
line
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
CA481226A
Other languages
English (en)
Inventor
Charles Borel Pierre
Roger Mauge Marcel
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 CA481226A publication Critical patent/CA481226A/fr
Expired legal-status Critical Current

Links

CA481226A Systeme automatique de telephone Expired CA481226A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA481226T

Publications (1)

Publication Number Publication Date
CA481226A true CA481226A (fr) 1952-02-19

Family

ID=35620913

Family Applications (1)

Application Number Title Priority Date Filing Date
CA481226A Expired CA481226A (fr) Systeme automatique de telephone

Country Status (1)

Country Link
CA (1) CA481226A (fr)

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