CA404210A - Electrical signalling system - Google Patents

Electrical signalling system

Info

Publication number
CA404210A
CA404210A CA404210A CA404210DA CA404210A CA 404210 A CA404210 A CA 404210A CA 404210 A CA404210 A CA 404210A CA 404210D A CA404210D A CA 404210DA CA 404210 A CA404210 A CA 404210A
Authority
CA
Canada
Prior art keywords
signalling system
electrical signalling
electrical
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
CA404210A
Other languages
French (fr)
Inventor
Charles Corner Arthur
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA404210A publication Critical patent/CA404210A/en
Expired legal-status Critical Current

Links

CA404210A Electrical signalling system Expired CA404210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA404210T

Publications (1)

Publication Number Publication Date
CA404210A true CA404210A (en) 1942-04-21

Family

ID=35415508

Family Applications (1)

Application Number Title Priority Date Filing Date
CA404210A Expired CA404210A (en) Electrical signalling system

Country Status (1)

Country Link
CA (1) CA404210A (en)

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