CA196685A - Signalling system - Google Patents

Signalling system

Info

Publication number
CA196685A
CA196685A CA196685A CA196685DA CA196685A CA 196685 A CA196685 A CA 196685A CA 196685 A CA196685 A CA 196685A CA 196685D A CA196685D A CA 196685DA CA 196685 A CA196685 A CA 196685A
Authority
CA
Canada
Prior art keywords
signalling system
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
CA196685A
Other languages
French (fr)
Inventor
S. Wilbur Ray
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 CA196685A publication Critical patent/CA196685A/en
Expired legal-status Critical Current

Links

CA196685A Signalling system Expired CA196685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA196685T

Publications (1)

Publication Number Publication Date
CA196685A true CA196685A (en) 1920-01-27

Family

ID=35071123

Family Applications (1)

Application Number Title Priority Date Filing Date
CA196685A Expired CA196685A (en) Signalling system

Country Status (1)

Country Link
CA (1) CA196685A (en)

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