FR342338A - Automatic warning device for telephone use - Google Patents

Automatic warning device for telephone use

Info

Publication number
FR342338A
FR342338A FR342338DA FR342338A FR 342338 A FR342338 A FR 342338A FR 342338D A FR342338D A FR 342338DA FR 342338 A FR342338 A FR 342338A
Authority
FR
France
Prior art keywords
warning device
automatic warning
telephone use
telephone
automatic
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
Alfred-Louis-Victor Faucon
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.)
ALFRED LOUIS VICTOR FAUCON
Original Assignee
ALFRED LOUIS VICTOR FAUCON
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 ALFRED LOUIS VICTOR FAUCON filed Critical ALFRED LOUIS VICTOR FAUCON
Application granted granted Critical
Publication of FR342338A publication Critical patent/FR342338A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR342338D 1904-04-14 1904-04-14 Automatic warning device for telephone use Expired FR342338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR342338T 1904-04-14

Publications (1)

Publication Number Publication Date
FR342338A true FR342338A (en) 1904-09-05

Family

ID=1391351

Family Applications (1)

Application Number Title Priority Date Filing Date
FR342338D Expired FR342338A (en) 1904-04-14 1904-04-14 Automatic warning device for telephone use

Country Status (1)

Country Link
FR (1) FR342338A (en)

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