CA539453A - Directional relay circuits for coded railway signaling systems - Google Patents

Directional relay circuits for coded railway signaling systems

Info

Publication number
CA539453A
CA539453A CA539453A CA539453DA CA539453A CA 539453 A CA539453 A CA 539453A CA 539453 A CA539453 A CA 539453A CA 539453D A CA539453D A CA 539453DA CA 539453 A CA539453 A CA 539453A
Authority
CA
Canada
Prior art keywords
signaling systems
relay circuits
railway signaling
directional relay
coded railway
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
CA539453A
Other languages
French (fr)
Inventor
W. Tizzard Thomas Jr.
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.)
Westinghouse Air Brake Co
Original Assignee
Westinghouse Air Brake Co
Publication date
Application granted granted Critical
Publication of CA539453A publication Critical patent/CA539453A/en
Expired legal-status Critical Current

Links

CA539453A Directional relay circuits for coded railway signaling systems Expired CA539453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA539453T

Publications (1)

Publication Number Publication Date
CA539453A true CA539453A (en) 1957-04-09

Family

ID=35694100

Family Applications (1)

Application Number Title Priority Date Filing Date
CA539453A Expired CA539453A (en) Directional relay circuits for coded railway signaling systems

Country Status (1)

Country Link
CA (1) CA539453A (en)

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