SE7801782L - ALARM SENDING DEVICE - Google Patents

ALARM SENDING DEVICE

Info

Publication number
SE7801782L
SE7801782L SE7801782A SE7801782A SE7801782L SE 7801782 L SE7801782 L SE 7801782L SE 7801782 A SE7801782 A SE 7801782A SE 7801782 A SE7801782 A SE 7801782A SE 7801782 L SE7801782 L SE 7801782L
Authority
SE
Sweden
Prior art keywords
sending device
alarm sending
alarm
sending
Prior art date
Application number
SE7801782A
Other languages
Swedish (sv)
Other versions
SE434784B (en
Original Assignee
Renstrom G O
Age G
Hjelm T
Lindblad L
Meisels E
Melcher D
Nilsson R
Lind H
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 Renstrom G O, Age G, Hjelm T, Lindblad L, Meisels E, Melcher D, Nilsson R, Lind H filed Critical Renstrom G O
Priority to SE7801782A priority Critical patent/SE434784B/en
Publication of SE7801782L publication Critical patent/SE7801782L/en
Publication of SE434784B publication Critical patent/SE434784B/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
SE7801782A 1978-02-16 1978-02-16 SOUND TRANSMITTING DEVICE WHICH IS CONNECTED TO THE PUBLIC TELEPHONE SE434784B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7801782A SE434784B (en) 1978-02-16 1978-02-16 SOUND TRANSMITTING DEVICE WHICH IS CONNECTED TO THE PUBLIC TELEPHONE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7801782A SE434784B (en) 1978-02-16 1978-02-16 SOUND TRANSMITTING DEVICE WHICH IS CONNECTED TO THE PUBLIC TELEPHONE

Publications (2)

Publication Number Publication Date
SE7801782L true SE7801782L (en) 1979-08-17
SE434784B SE434784B (en) 1984-08-13

Family

ID=20334005

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7801782A SE434784B (en) 1978-02-16 1978-02-16 SOUND TRANSMITTING DEVICE WHICH IS CONNECTED TO THE PUBLIC TELEPHONE

Country Status (1)

Country Link
SE (1) SE434784B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE459539B (en) * 1987-04-08 1989-07-10 Jan Lennart Johansson SECURITY SYSTEM INCLUDING A SIGNAL TRANSMITTER FOR TRANSFER OF CONDITION INFORMATION THROUGH A TELECOMMUNICATION CHANNEL
FI77344C (en) * 1987-10-15 1989-02-10 Sostel Oy TILL ETT TELEFONNAET ANSLUTBAR INTELLIGENT ALARMANORDNING.

Also Published As

Publication number Publication date
SE434784B (en) 1984-08-13

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