FR752069A - Automatic telephone warning device for thefts, disasters, etc. - Google Patents

Automatic telephone warning device for thefts, disasters, etc.

Info

Publication number
FR752069A
FR752069A FR752069DA FR752069A FR 752069 A FR752069 A FR 752069A FR 752069D A FR752069D A FR 752069DA FR 752069 A FR752069 A FR 752069A
Authority
FR
France
Prior art keywords
thefts
disasters
warning device
automatic telephone
telephone warning
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
Raymond Fontbonne
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
Application granted granted Critical
Publication of FR752069A publication Critical patent/FR752069A/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
    • 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)
FR752069D 1932-10-15 1932-06-11 Automatic telephone warning device for thefts, disasters, etc. Expired FR752069A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR43004T 1932-10-15

Publications (1)

Publication Number Publication Date
FR752069A true FR752069A (en) 1933-09-15

Family

ID=8679018

Family Applications (2)

Application Number Title Priority Date Filing Date
FR752069D Expired FR752069A (en) 1932-10-15 1932-06-11 Automatic telephone warning device for thefts, disasters, etc.
FR43004D Expired FR43004E (en) 1932-10-15 1932-10-15 Automatic telephone warning device for thefts, disasters, etc.

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR43004D Expired FR43004E (en) 1932-10-15 1932-10-15 Automatic telephone warning device for thefts, disasters, etc.

Country Status (1)

Country Link
FR (2) FR752069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896065C (en) * 1950-06-07 1953-11-09 Samuel Dunseith Mckellen Alarm device with dials for automatic telecommunication connection
DE964418C (en) * 1953-09-10 1957-05-23 Claire Schueler Wirz Emergency alarm system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896065C (en) * 1950-06-07 1953-11-09 Samuel Dunseith Mckellen Alarm device with dials for automatic telecommunication connection
DE964418C (en) * 1953-09-10 1957-05-23 Claire Schueler Wirz Emergency alarm system

Also Published As

Publication number Publication date
FR43004E (en) 1934-01-25

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