LU54679A1 - - Google Patents

Info

Publication number
LU54679A1
LU54679A1 LU54679DA LU54679A1 LU 54679 A1 LU54679 A1 LU 54679A1 LU 54679D A LU54679D A LU 54679DA LU 54679 A1 LU54679 A1 LU 54679A1
Authority
LU
Luxembourg
Application number
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
Priority claimed from BE653696A external-priority patent/BE653696A/fr
Application filed filed Critical
Publication of LU54679A1 publication Critical patent/LU54679A1/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
LU54679D 1964-09-29 1967-10-16 LU54679A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE653696A BE653696A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1964-09-29 1964-09-29
BE689837 1966-11-17

Publications (1)

Publication Number Publication Date
LU54679A1 true LU54679A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-12-18

Family

ID=25656021

Family Applications (1)

Application Number Title Priority Date Filing Date
LU54679D LU54679A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1964-09-29 1967-10-16

Country Status (5)

Country Link
US (1) US3503067A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE689837A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1283713B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1201163A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU54679A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3732439A (en) * 1969-11-28 1973-05-08 N Calvin Pulse producing circuit particularly adapted for button type telephones
JPS5136119B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-04-15 1976-10-06
US4001776A (en) * 1975-08-04 1977-01-04 General Motors Corporation Multiple indication display
US4095220A (en) * 1976-08-18 1978-06-13 Sadler Joe A Alarm detection and identification system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE160097C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
US3047843A (en) * 1957-02-15 1962-07-31 Rca Corp Monitoring circuits
NL248450A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1959-02-17
FR1265919A (fr) * 1960-05-24 1961-07-07 Cie Constr Gros Mat Electromec Perfectionnement aux systèmes automatiques de signalisation des défauts
US3147464A (en) * 1961-10-16 1964-09-01 Warren L Spielman First-out annunclator having input and supply control of indicator switching means
NL276365A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1962-03-23

Also Published As

Publication number Publication date
GB1201163A (en) 1970-08-05
BE689837A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-05-02
US3503067A (en) 1970-03-24
DE1283713B (de) 1968-11-21

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