CA237619A - Systeme de signaux selecteurs de ligne groupee - Google Patents

Systeme de signaux selecteurs de ligne groupee

Info

Publication number
CA237619A
CA237619A CA237619A CA237619DA CA237619A CA 237619 A CA237619 A CA 237619A CA 237619 A CA237619 A CA 237619A CA 237619D A CA237619D A CA 237619DA CA 237619 A CA237619 A CA 237619A
Authority
CA
Canada
Prior art keywords
signalling system
party line
selective signalling
line selective
party
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
CA237619A
Other languages
English (en)
Inventor
L. Nelson Martin
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.)
Nortel Networks Ltd
Original Assignee
Northern Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA237619A publication Critical patent/CA237619A/fr
Expired legal-status Critical Current

Links

CA237619A Systeme de signaux selecteurs de ligne groupee Expired CA237619A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA237619T

Publications (1)

Publication Number Publication Date
CA237619A true CA237619A (fr) 1924-02-05

Family

ID=35141647

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237619A Expired CA237619A (fr) Systeme de signaux selecteurs de ligne groupee

Country Status (1)

Country Link
CA (1) CA237619A (fr)

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