FR749941A - Dispositif de signalisation verrouillée - Google Patents

Dispositif de signalisation verrouillée

Info

Publication number
FR749941A
FR749941A FR749941DA FR749941A FR 749941 A FR749941 A FR 749941A FR 749941D A FR749941D A FR 749941DA FR 749941 A FR749941 A FR 749941A
Authority
FR
France
Prior art keywords
locked
signaling device
signaling
locked signaling
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
Other languages
English (en)
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Application granted granted Critical
Publication of FR749941A publication Critical patent/FR749941A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to two or more of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to two or more of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR749941D 1933-02-02 1933-02-02 Dispositif de signalisation verrouillée Expired FR749941A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR749941T 1933-02-02

Publications (1)

Publication Number Publication Date
FR749941A true FR749941A (fr) 1933-08-01

Family

ID=9149332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR749941D Expired FR749941A (fr) 1933-02-02 1933-02-02 Dispositif de signalisation verrouillée

Country Status (1)

Country Link
FR (1) FR749941A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128457A (en) * 1961-04-12 1964-04-07 Don M Hallerberg Series operated relay alarm system
US3151320A (en) * 1960-08-17 1964-09-29 Bell Telephone Labor Inc Alarm system with transferable indication
US3480939A (en) * 1967-06-19 1969-11-25 Clare & Co C P Change-of-state detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151320A (en) * 1960-08-17 1964-09-29 Bell Telephone Labor Inc Alarm system with transferable indication
US3128457A (en) * 1961-04-12 1964-04-07 Don M Hallerberg Series operated relay alarm system
US3480939A (en) * 1967-06-19 1969-11-25 Clare & Co C P Change-of-state detector

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