FR1134905A - Device for automatic signaling of the calling telephone number in a subscriber telephone set - Google Patents

Device for automatic signaling of the calling telephone number in a subscriber telephone set

Info

Publication number
FR1134905A
FR1134905A FR1134905DA FR1134905A FR 1134905 A FR1134905 A FR 1134905A FR 1134905D A FR1134905D A FR 1134905DA FR 1134905 A FR1134905 A FR 1134905A
Authority
FR
France
Prior art keywords
automatic signaling
telephone number
subscriber
calling
telephone set
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
Giorgio Busetti
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 FR1134905A publication Critical patent/FR1134905A/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
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR1134905D 1954-07-31 1955-07-30 Device for automatic signaling of the calling telephone number in a subscriber telephone set Expired FR1134905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1134905X 1954-07-31

Publications (1)

Publication Number Publication Date
FR1134905A true FR1134905A (en) 1957-04-19

Family

ID=11431666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1134905D Expired FR1134905A (en) 1954-07-31 1955-07-30 Device for automatic signaling of the calling telephone number in a subscriber telephone set

Country Status (1)

Country Link
FR (1) FR1134905A (en)

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