GB484307A - Improvements in automatic burglar and fire alarms - Google Patents

Improvements in automatic burglar and fire alarms

Info

Publication number
GB484307A
GB484307A GB30013/36A GB3001336A GB484307A GB 484307 A GB484307 A GB 484307A GB 30013/36 A GB30013/36 A GB 30013/36A GB 3001336 A GB3001336 A GB 3001336A GB 484307 A GB484307 A GB 484307A
Authority
GB
United Kingdom
Prior art keywords
fire alarms
automatic burglar
burglar
automatic
mountstephen
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB30013/36A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority to BE424391D priority Critical patent/BE424391A/xx
Application filed by Individual filed Critical Individual
Priority to GB30013/36A priority patent/GB484307A/en
Priority to FR828568D priority patent/FR828568A/fr
Priority to US172462A priority patent/US2161526A/en
Publication of GB484307A publication Critical patent/GB484307A/en
Expired legal-status Critical Current

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)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Burglar Alarm Systems (AREA)
GB30013/36A 1936-11-04 1936-11-04 Improvements in automatic burglar and fire alarms Expired GB484307A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE424391D BE424391A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) 1936-11-04
GB30013/36A GB484307A (en) 1936-11-04 1936-11-04 Improvements in automatic burglar and fire alarms
FR828568D FR828568A (fr) 1936-11-04 1937-10-30 Perfectionnements aux avertisseurs automatiques d'effraction et d'incendie
US172462A US2161526A (en) 1936-11-04 1937-11-02 Automatic burglar and fire alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30013/36A GB484307A (en) 1936-11-04 1936-11-04 Improvements in automatic burglar and fire alarms

Publications (1)

Publication Number Publication Date
GB484307A true GB484307A (en) 1938-05-04

Family

ID=10300856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30013/36A Expired GB484307A (en) 1936-11-04 1936-11-04 Improvements in automatic burglar and fire alarms

Country Status (4)

Country Link
US (1) US2161526A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
BE (1) BE424391A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
FR (1) FR828568A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
GB (1) GB484307A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Also Published As

Publication number Publication date
US2161526A (en) 1939-06-06
FR828568A (fr) 1938-05-20
BE424391A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

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