BE382314A - - Google Patents

Info

Publication number
BE382314A
BE382314A BE382314DA BE382314A BE 382314 A BE382314 A BE 382314A BE 382314D A BE382314D A BE 382314DA BE 382314 A BE382314 A BE 382314A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE382314A publication Critical patent/BE382314A/xx

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)
  • Alarm Systems (AREA)
BE382314D 1930-08-30 1931-08-28 BE382314A (enrdf_load_stackoverflow)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1930H0040230 DE567446C (de) 1930-08-30 1930-08-30 Alarmvorrichtung zur automatischen UEbermittlung eines Alarmrufes ueber die Teilnehmerleitung eines Selbstanschlussfernsprechnetzes
CH162598T 1931-08-28
GB25787/31A GB377489A (en) 1930-08-30 1931-09-14 Improvements in alarm devices for use in connection with telephone systems

Publications (1)

Publication Number Publication Date
BE382314A true BE382314A (enrdf_load_stackoverflow) 1931-09-30

Family

ID=10233294

Family Applications (1)

Application Number Title Priority Date Filing Date
BE382314D BE382314A (enrdf_load_stackoverflow) 1930-08-30 1931-08-28

Country Status (5)

Country Link
BE (1) BE382314A (enrdf_load_stackoverflow)
CH (1) CH162598A (enrdf_load_stackoverflow)
DE (1) DE567446C (enrdf_load_stackoverflow)
FR (1) FR722639A (enrdf_load_stackoverflow)
GB (1) GB377489A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896065C (de) * 1950-06-07 1953-11-09 Samuel Dunseith Mckellen Alarmvorrichtung mit Waehlern zum selbsttaetigen Fernmeldeanschluss
DE1035700B (de) * 1955-09-23 1958-08-07 Siemens Ag Schaltungsanordnung zur Abgabe von Meldungen ueber Fernsprechleitungen

Also Published As

Publication number Publication date
GB377489A (en) 1932-07-28
CH162598A (de) 1933-06-30
DE567446C (de) 1933-01-03
FR722639A (fr) 1932-03-26

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