AT370933B - Notrufanlage - Google Patents

Notrufanlage

Info

Publication number
AT370933B
AT370933B AT0662178A AT662178A AT370933B AT 370933 B AT370933 B AT 370933B AT 0662178 A AT0662178 A AT 0662178A AT 662178 A AT662178 A AT 662178A AT 370933 B AT370933 B AT 370933B
Authority
AT
Austria
Prior art keywords
emergency system
emergency
Prior art date
Application number
AT0662178A
Other languages
English (en)
Other versions
ATA662178A (de
Original Assignee
Neumann Elektronik Gmbh
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 Neumann Elektronik Gmbh filed Critical Neumann Elektronik Gmbh
Publication of ATA662178A publication Critical patent/ATA662178A/de
Application granted granted Critical
Publication of AT370933B publication Critical patent/AT370933B/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/68—Circuit arrangements for preventing eavesdropping
    • H04M1/70—Lock-out or secrecy arrangements in party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M13/00—Party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/16—Automatic or semi-automatic exchanges with lock-out or secrecy provision in party-line systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Alarm Systems (AREA)
AT0662178A 1977-12-29 1978-09-13 Notrufanlage AT370933B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2758689A DE2758689C3 (de) 1977-12-29 1977-12-29 Notrufanlage

Publications (2)

Publication Number Publication Date
ATA662178A ATA662178A (de) 1982-09-15
AT370933B true AT370933B (de) 1983-05-10

Family

ID=6027623

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0662178A AT370933B (de) 1977-12-29 1978-09-13 Notrufanlage

Country Status (4)

Country Link
AT (1) AT370933B (de)
CH (1) CH640071A5 (de)
DE (1) DE2758689C3 (de)
SE (1) SE437435B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2949513C2 (de) * 1979-12-08 1983-12-22 Neumann Elektronik GmbH, 4330 Mülheim Notrufanlage
DE3024494C2 (de) * 1980-06-28 1982-05-19 Neumann Elektronik GmbH, 4330 Mülheim Prüfeinrichtung für eine Notrufteilnehmerstation

Also Published As

Publication number Publication date
DE2758689B2 (de) 1980-05-29
SE7812930L (sv) 1979-06-30
CH640071A5 (en) 1983-12-15
SE437435B (sv) 1985-02-25
ATA662178A (de) 1982-09-15
DE2758689A1 (de) 1979-07-05
DE2758689C3 (de) 1981-02-12

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee