FR812847A - Automatic phone identifier - Google Patents

Automatic phone identifier

Info

Publication number
FR812847A
FR812847A FR812847DA FR812847A FR 812847 A FR812847 A FR 812847A FR 812847D A FR812847D A FR 812847DA FR 812847 A FR812847 A FR 812847A
Authority
FR
France
Prior art keywords
phone identifier
automatic phone
automatic
identifier
phone
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
Aldo De Benedetti
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 FR812847A publication Critical patent/FR812847A/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)
  • Telephonic Communication Services (AREA)
  • Meter Arrangements (AREA)
FR812847D 1935-10-31 1936-10-31 Automatic phone identifier Expired FR812847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT220600X 1935-10-31

Publications (1)

Publication Number Publication Date
FR812847A true FR812847A (en) 1937-05-19

Family

ID=11190869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR812847D Expired FR812847A (en) 1935-10-31 1936-10-31 Automatic phone identifier

Country Status (3)

Country Link
CH (1) CH220600A (en)
FR (1) FR812847A (en)
GB (2) GB490357A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1000057B (en) * 1955-06-23 1957-01-03 Sueddeutsche Telefon App Kabel Arrangement for recording the number of the calling subscriber in telephone, in particular telephone branch exchange systems with charge printers

Also Published As

Publication number Publication date
GB488488A (en) 1938-07-04
GB490357A (en) 1938-08-02
CH220600A (en) 1942-04-15

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