CA407237A - Electrical signalling system - Google Patents

Electrical signalling system

Info

Publication number
CA407237A
CA407237A CA407237A CA407237DA CA407237A CA 407237 A CA407237 A CA 407237A CA 407237 A CA407237 A CA 407237A CA 407237D A CA407237D A CA 407237DA CA 407237 A CA407237 A CA 407237A
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
CA407237A
Other languages
French (fr)
Inventor
Bruno Dante Terroni Teseo
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 CA407237A publication Critical patent/CA407237A/en
Expired legal-status Critical Current

Links

CA407237A Electrical signalling system Expired CA407237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA407237T

Publications (1)

Publication Number Publication Date
CA407237A true CA407237A (en) 1942-09-08

Family

ID=35418537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA407237A Expired CA407237A (en) Electrical signalling system

Country Status (1)

Country Link
CA (1) CA407237A (en)

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