CH202679A - Automatic electrical alarm system. - Google Patents

Automatic electrical alarm system.

Info

Publication number
CH202679A
CH202679A CH202679DA CH202679A CH 202679 A CH202679 A CH 202679A CH 202679D A CH202679D A CH 202679DA CH 202679 A CH202679 A CH 202679A
Authority
CH
Switzerland
Prior art keywords
alarm system
automatic electrical
electrical alarm
automatic
electrical
Prior art date
Application number
Other languages
German (de)
Inventor
Teodor Nicou Hans
Original Assignee
Teodor Nicou Hans
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 Teodor Nicou Hans filed Critical Teodor Nicou Hans
Publication of CH202679A publication Critical patent/CH202679A/en

Links

Classifications

    • 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
    • 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)
  • Emergency Alarm Devices (AREA)
CH202679D 1937-01-20 1938-01-20 Automatic electrical alarm system. CH202679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE202679X 1937-01-20

Publications (1)

Publication Number Publication Date
CH202679A true CH202679A (en) 1939-01-31

Family

ID=20304948

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202679D CH202679A (en) 1937-01-20 1938-01-20 Automatic electrical alarm system.

Country Status (6)

Country Link
US (1) US2294043A (en)
BE (1) BE425857A (en)
CH (1) CH202679A (en)
DE (1) DE722085C (en)
FR (1) FR832277A (en)
NL (1) NL54631C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075019B (en) * 1960-02-04 Dragerwerk Hemr S. Bernh Drager Lübeck Electric remote temperature indicator for motor vehicles
US2636163A (en) * 1951-04-19 1953-04-21 Earle V Gardiner Burglar alarm system
US2696603A (en) * 1952-06-10 1954-12-07 Ekman Olof Ingemar Harald Two-wire alarm or control system
US3648268A (en) * 1969-11-03 1972-03-07 Melvin Paull Surveillance and alarm system

Also Published As

Publication number Publication date
US2294043A (en) 1942-08-25
BE425857A (en)
NL54631C (en)
DE722085C (en) 1942-06-30
FR832277A (en) 1938-09-23

Similar Documents

Publication Publication Date Title
CH235154A (en) Telecommunication system.
CH207806A (en) Electrical amplifier device.
CH202679A (en) Automatic electrical alarm system.
CH232790A (en) Electric telecommunication system.
CH206325A (en) Automatic alarm device.
CH231614A (en) Electric telecommunication system.
CH239303A (en) Telecommunication system.
CH218508A (en) Lighting system.
CH219021A (en) Electric telecommunication system.
DK59641C (en) Automatic electric alarm system.
DK59915C (en) Electrical Remote Signaling System.
DK57669C (en) Electrical Remote Signaling System.
DK59461C (en) Electrical Remote Signaling System.
DK59300C (en) Electrical Signaling System.
CH195907A (en) Electric hotplate.
CH195905A (en) Electric hotplate.
CH206863A (en) Automatic fire alarm system.
CH202671A (en) Telegraph system.
DK57677C (en) Electrical Signaling Cable.
CH203264A (en) Electrical signaling device.
CH206827A (en) Electrical switchgear.
AT159179B (en) Electric air raid alarm system.
DK57535C (en) Electrical Signaling System.
DK54616C (en) Electrical fuse.
DK55816C (en) Electrical fuse.