FR814406A - Alarm call installation - Google Patents

Alarm call installation

Info

Publication number
FR814406A
FR814406A FR814406DA FR814406A FR 814406 A FR814406 A FR 814406A FR 814406D A FR814406D A FR 814406DA FR 814406 A FR814406 A FR 814406A
Authority
FR
France
Prior art keywords
alarm call
call installation
installation
alarm
call
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
Other languages
French (fr)
Inventor
Josef Greiner
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.)
OESTERREICHISCHE NOTRUF GES TE
Original Assignee
OESTERREICHISCHE NOTRUF GES TE
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 OESTERREICHISCHE NOTRUF GES TE filed Critical OESTERREICHISCHE NOTRUF GES TE
Application granted granted Critical
Publication of FR814406A publication Critical patent/FR814406A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR814406D 1935-12-02 1936-12-02 Alarm call installation Expired FR814406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT814406X 1935-12-02

Publications (1)

Publication Number Publication Date
FR814406A true FR814406A (en) 1937-06-23

Family

ID=3681431

Family Applications (1)

Application Number Title Priority Date Filing Date
FR814406D Expired FR814406A (en) 1935-12-02 1936-12-02 Alarm call installation

Country Status (1)

Country Link
FR (1) FR814406A (en)

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