GB815651A - Improvements in or relating to automatic alarm devices - Google Patents

Improvements in or relating to automatic alarm devices

Info

Publication number
GB815651A
GB815651A GB731056A GB731056A GB815651A GB 815651 A GB815651 A GB 815651A GB 731056 A GB731056 A GB 731056A GB 731056 A GB731056 A GB 731056A GB 815651 A GB815651 A GB 815651A
Authority
GB
United Kingdom
Prior art keywords
relating
automatic alarm
alarm devices
devices
automatic
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
GB731056A
Inventor
Jens Peter Rehahn
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.)
VEB FUNKWERK KOPENICK
Original Assignee
VEB FUNKWERK KOPENICK
Filing date
Publication date
Priority to DEV10069A priority Critical patent/DE1002787B/en
Application filed by VEB FUNKWERK KOPENICK filed Critical VEB FUNKWERK KOPENICK
Priority to FR1151552D priority patent/FR1151552A/en
Publication of GB815651A publication Critical patent/GB815651A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
    • H04L15/24—Apparatus or circuits at the receiving end
    • H04L15/26—Apparatus or circuits at the receiving end operating only on reception of predetermined code signals, e.g. distress signals, party-line call signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
GB731056A 1956-01-24 1956-03-08 Improvements in or relating to automatic alarm devices Expired GB815651A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEV10069A DE1002787B (en) 1956-01-24 1956-01-24 Automatic alarm device
FR1151552D FR1151552A (en) 1956-03-08 1956-04-24 Automatic warning device for receiving alarm signals

Publications (1)

Publication Number Publication Date
GB815651A true GB815651A (en) 1959-07-01

Family

ID=1628938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB731056A Expired GB815651A (en) 1956-01-24 1956-03-08 Improvements in or relating to automatic alarm devices

Country Status (1)

Country Link
GB (1) GB815651A (en)

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