CA355240A - Two-way signalling system - Google Patents

Two-way signalling system

Info

Publication number
CA355240A
CA355240A CA355240A CA355240DA CA355240A CA 355240 A CA355240 A CA 355240A CA 355240 A CA355240 A CA 355240A CA 355240D A CA355240D A CA 355240DA CA 355240 A CA355240 A CA 355240A
Authority
CA
Canada
Prior art keywords
signalling system
way signalling
way
signalling
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
CA355240A
Other languages
French (fr)
Inventor
G. Bjornson Bjorn
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA355240A publication Critical patent/CA355240A/en
Expired legal-status Critical Current

Links

CA355240A Two-way signalling system Expired CA355240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA355240T

Publications (1)

Publication Number Publication Date
CA355240A true CA355240A (en) 1936-01-07

Family

ID=35343202

Family Applications (1)

Application Number Title Priority Date Filing Date
CA355240A Expired CA355240A (en) Two-way signalling system

Country Status (1)

Country Link
CA (1) CA355240A (en)

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