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)
  • Burglar Alarm Systems (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (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 (xx) 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 (xx)
BE (1) BE424391A (xx)
FR (1) FR828568A (xx)
GB (1) GB484307A (xx)

Also Published As

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

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