FR53572E - - Google Patents

Info

Publication number
FR53572E
FR53572E FR53572DA FR53572E FR 53572 E FR53572 E FR 53572E FR 53572D A FR53572D A FR 53572DA FR 53572 E FR53572 E FR 53572E
Authority
FR
France
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
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.)
Publication date
Application granted granted Critical
Publication of FR53572E publication Critical patent/FR53572E/fr
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
    • 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)
FR53572D 1944-05-02 Expired FR53572E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR53567T 1944-05-02

Publications (1)

Publication Number Publication Date
FR53572E true FR53572E (fr) 1946-04-29

Family

ID=8688089

Family Applications (3)

Application Number Title Priority Date Filing Date
FR53572D Expired FR53572E (fr) 1944-05-02
FR904083D Expired FR904083A (fr) 1944-05-02 1944-04-20 Appareil alertant automatiquement police-secours
FR53567D Expired FR53567E (fr) 1944-05-02 1944-05-02 Appareil alertant automatiquement police-secours

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR904083D Expired FR904083A (fr) 1944-05-02 1944-04-20 Appareil alertant automatiquement police-secours
FR53567D Expired FR53567E (fr) 1944-05-02 1944-05-02 Appareil alertant automatiquement police-secours

Country Status (1)

Country Link
FR (3) FR904083A (fr)

Also Published As

Publication number Publication date
FR904083A (fr) 1945-10-25
FR53567E (fr) 1946-04-26

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