CH206325A - Automatic alarm device. - Google Patents

Automatic alarm device.

Info

Publication number
CH206325A
CH206325A CH206325DA CH206325A CH 206325 A CH206325 A CH 206325A CH 206325D A CH206325D A CH 206325DA CH 206325 A CH206325 A CH 206325A
Authority
CH
Switzerland
Prior art keywords
alarm device
automatic alarm
automatic
alarm
Prior art date
Application number
Other languages
German (de)
Inventor
Rabjohn Mountstephen Edred
John Wood William
George Spence Alexander
Original Assignee
Rabjohn Mountstephen Edred
John Wood William
George Spence Alexander
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 Rabjohn Mountstephen Edred, John Wood William, George Spence Alexander filed Critical Rabjohn Mountstephen Edred
Publication of CH206325A publication Critical patent/CH206325A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Fire Alarms (AREA)
  • Electromechanical Clocks (AREA)
CH206325D 1937-02-15 1938-01-26 Automatic alarm device. CH206325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB206325X 1937-02-15

Publications (1)

Publication Number Publication Date
CH206325A true CH206325A (en) 1939-07-31

Family

ID=10149136

Family Applications (1)

Application Number Title Priority Date Filing Date
CH206325D CH206325A (en) 1937-02-15 1938-01-26 Automatic alarm device.

Country Status (6)

Country Link
US (1) US2191971A (en)
BE (1) BE426001A (en)
CH (1) CH206325A (en)
FR (1) FR832629A (en)
GB (1) GB492161A (en)
NL (1) NL61918C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB589160A (en) * 1945-03-15 1947-06-12 Alfred Samuel Horace Picking Improvements in or relating to automatic alarm systems
FR956829A (en) * 1946-09-03 1950-02-08
US2555714A (en) * 1950-01-24 1951-06-05 H S Brimm Alarm system
US2804501A (en) * 1955-09-26 1957-08-27 Boeing Co Voice warning systems

Also Published As

Publication number Publication date
FR832629A (en) 1938-09-29
GB492161A (en) 1938-09-15
US2191971A (en) 1940-02-27
BE426001A (en)
NL61918C (en)

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