BE459861A - - Google Patents

Info

Publication number
BE459861A
BE459861A BE459861DA BE459861A BE 459861 A BE459861 A BE 459861A BE 459861D A BE459861D A BE 459861DA BE 459861 A BE459861 A BE 459861A
Authority
BE
Belgium
Prior art keywords
resistors
relay
parallel
influence
bridge
Prior art date
Application number
Other languages
English (en)
French (fr)
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.)
Publication of BE459861A publication Critical patent/BE459861A/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
BE459861D 1945-03-02 BE459861A (mo)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54102T 1945-03-02

Publications (1)

Publication Number Publication Date
BE459861A true BE459861A (mo)

Family

ID=8688569

Family Applications (1)

Application Number Title Priority Date Filing Date
BE459861D BE459861A (mo) 1945-03-02

Country Status (2)

Country Link
BE (1) BE459861A (mo)
FR (1) FR54102E (mo)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1093208A (mo) * 1953-02-14 1955-05-02

Also Published As

Publication number Publication date
FR54102E (fr) 1947-11-06

Similar Documents

Publication Publication Date Title
FR2600465A1 (fr) Element de protection contre les surtensions sur les lignes telephoniques ou les lignes de transmission d'informations ou analogues
CH455932A (fr) Appareil indiquant si une tension est supérieure ou inférieure à une certaine valeur
BE459861A (mo)
US2896128A (en) Lightning surge protecting apparatus
FR2485824A1 (fr) Circuit de protection a transistor
FR3025934A1 (fr) Disjoncteur
US2196830A (en) Photoelectric cell
US2281795A (en) Fuse link construction
FR3016751A1 (fr) Dispositif de protection d'un circuit contre des surtensions et organe d'alimentation electrique comprenant un tel dispositif
US1805195A (en) Electric surge recorder
WO1983004449A1 (fr) Detecteur de fumee du type a ionisation
US970169A (en) Electrical protective apparatus.
US1150926A (en) Protective apparatus for electric circuits.
US1175432A (en) Thermoscope.
US2404687A (en) Insect electrocutor
US1763196A (en) Insulator string
US1614174A (en) Instrument shunt
US1959073A (en) Photo-electric cell
FR2665031A1 (fr) Attenuateur de surtensions et de surintensites equilibre.
US440361A (en) Combined lightning-arrester and cut-out
US570808A (en) Edmund jokl and wiliielm maximilian christian
US1740294A (en) best available cop
CH88651A (fr) Procédé et installation d'égalisation des potentiels des prises de terre dans les postes télégraphiques.
US321235A (en) mccarty
Gould et al. The time dependence of circulating and emission currents in evaporated thin film sandwich structures of Au SiOx Au