CA374272A - Systeme de signalisation - Google Patents

Systeme de signalisation

Info

Publication number: CA374272A
Authority: CA; Canada
Prior art keywords: signalling system; signalling
Prior art date: 1938-06-07
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

CA374272A

Other languages

English (en)

Inventor

Mitchell Doren

Gladstone Abraham Leonard

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

1938-06-07

1938-06-07 Application granted granted Critical

1938-06-07 Publication of CA374272A publication Critical patent/CA374272A/fr

Status Expired legal-status Critical Current

Links

230000011664 signaling Effects 0.000 title 1

CA374272A Systeme de signalisation Expired CA374272A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA374272T

Publications (1)

Publication Number	Publication Date
CA374272A true CA374272A (fr)	1938-06-07

Family

ID=35378596

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA374272A Expired CA374272A (fr)			Systeme de signalisation

Country Status (1)

Country	Link
CA (1)	CA374272A (fr)

0
- CA CA374272A patent/CA374272A/fr not_active Expired

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