DK94930C - Acoustic fire alarm. - Google Patents

Acoustic fire alarm.

Info

Publication number
DK94930C
DK94930C DK368760A DK368760A DK94930C DK 94930 C DK94930 C DK 94930C DK 368760 A DK368760 A DK 368760A DK 368760 A DK368760 A DK 368760A DK 94930 C DK94930 C DK 94930C
Authority
DK
Denmark
Prior art keywords
fire alarm
acoustic fire
acoustic
alarm
fire
Prior art date
Application number
DK368760A
Other languages
Danish (da)
Inventor
Bernhard Fredrik Johannesen
Original Assignee
Bernhard Fredrik Johannesen
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 Bernhard Fredrik Johannesen filed Critical Bernhard Fredrik Johannesen
Priority to DK368760A priority Critical patent/DK94930C/en
Priority to GB3354261A priority patent/GB916360A/en
Application granted granted Critical
Publication of DK94930C publication Critical patent/DK94930C/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/08—Actuation involving the use of explosive means

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
DK368760A 1960-09-19 1960-09-19 Acoustic fire alarm. DK94930C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK368760A DK94930C (en) 1960-09-19 1960-09-19 Acoustic fire alarm.
GB3354261A GB916360A (en) 1960-09-19 1961-09-19 Improvements in acoustic fire-alarms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK368760A DK94930C (en) 1960-09-19 1960-09-19 Acoustic fire alarm.

Publications (1)

Publication Number Publication Date
DK94930C true DK94930C (en) 1962-12-03

Family

ID=8125668

Family Applications (1)

Application Number Title Priority Date Filing Date
DK368760A DK94930C (en) 1960-09-19 1960-09-19 Acoustic fire alarm.

Country Status (2)

Country Link
DK (1) DK94930C (en)
GB (1) GB916360A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108510694A (en) * 2018-04-02 2018-09-07 黄鑫 A kind of fire alarm method and its system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1009638A (en) * 1911-05-10 1911-11-21 Joseph T Bland Fire-alarm.
US1043228A (en) * 1912-11-05 B S Harrington Fire alarm.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1043228A (en) * 1912-11-05 B S Harrington Fire alarm.
US1009638A (en) * 1911-05-10 1911-11-21 Joseph T Bland Fire-alarm.

Also Published As

Publication number Publication date
GB916360A (en) 1963-01-23

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