FR994099A - Perfectionnement aux installations téléphoniques - Google Patents

Perfectionnement aux installations téléphoniques

Info

Publication number
FR994099A
FR994099A FR994099DA FR994099A FR 994099 A FR994099 A FR 994099A FR 994099D A FR994099D A FR 994099DA FR 994099 A FR994099 A FR 994099A
Authority
FR
France
Prior art keywords
telephone systems
further training
training
telephone
systems
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
English (en)
Inventor
Georges-Henri-Louis Gascoin
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 FR994099A publication Critical patent/FR994099A/fr
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
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR994099D 1944-12-20 1944-12-20 Perfectionnement aux installations téléphoniques Expired FR994099A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR994099T 1944-12-20

Publications (1)

Publication Number Publication Date
FR994099A true FR994099A (fr) 1951-11-12

Family

ID=9556150

Family Applications (1)

Application Number Title Priority Date Filing Date
FR994099D Expired FR994099A (fr) 1944-12-20 1944-12-20 Perfectionnement aux installations téléphoniques

Country Status (1)

Country Link
FR (1) FR994099A (fr)

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