CA490790A - Systemes electriques de signalisation - Google Patents

Systemes electriques de signalisation

Info

Publication number: CA490790A
Authority: CA; Canada
Prior art keywords: signalling systems; electric signalling; electric; systems; signalling
Prior art date: 1953-02-24
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

CA490790A

Other languages

English (en)

Inventor

A. H. Bowsher Edward

M. M. D'assis-Fonseca Harold

J. Ward Hugh

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric Corp

Publication date

1953-02-24

1953-02-24 Application granted granted Critical

1953-02-24 Publication of CA490790A publication Critical patent/CA490790A/fr

Status Expired legal-status Critical Current

Links

230000011664 signaling Effects 0.000 title 1

CA490790A Systemes electriques de signalisation Expired CA490790A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA490790T

Publications (1)

Publication Number	Publication Date
CA490790A true CA490790A (fr)	1953-02-24

Family

ID=35630527

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA490790A Expired CA490790A (fr)			Systemes electriques de signalisation

Country Status (1)

Country	Link
CA (1)	CA490790A (fr)

0
- CA CA490790A patent/CA490790A/fr not_active Expired

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