DK44500C - Anordning ved automatiske Brandalarmanlæg. - Google Patents

Anordning ved automatiske Brandalarmanlæg.

Info

Publication number
DK44500C
DK44500C DK44500DA DK44500C DK 44500 C DK44500 C DK 44500C DK 44500D A DK44500D A DK 44500DA DK 44500 C DK44500 C DK 44500C
Authority
DK
Denmark
Prior art keywords
fire alarm
automatic fire
alarm systems
systems
automatic
Prior art date
Application number
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of DK44500C publication Critical patent/DK44500C/da

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
    • 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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
DK44500D 1929-01-07 1929-12-31 Anordning ved automatiske Brandalarmanlæg. DK44500C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE703951X 1929-01-07

Publications (1)

Publication Number Publication Date
DK44500C true DK44500C (da) 1931-08-17

Family

ID=20315539

Family Applications (1)

Application Number Title Priority Date Filing Date
DK44500D DK44500C (da) 1929-01-07 1929-12-31 Anordning ved automatiske Brandalarmanlæg.

Country Status (4)

Country Link
DE (1) DE603437C (da)
DK (1) DK44500C (da)
FR (1) FR703951A (da)
GB (1) GB352037A (da)

Also Published As

Publication number Publication date
GB352037A (en) 1931-07-06
DE603437C (de) 1934-09-29
FR703951A (fr) 1931-05-08

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