FR915171A - Dispositif amplificateur des courants téléphoniques - Google Patents

Dispositif amplificateur des courants téléphoniques

Info

Publication number
FR915171A
FR915171A FR915171DA FR915171A FR 915171 A FR915171 A FR 915171A FR 915171D A FR915171D A FR 915171DA FR 915171 A FR915171 A FR 915171A
Authority
FR
France
Prior art keywords
current amplifier
amplifier device
telephone current
telephone
current
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
Gerard Michael Horvitch
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 FR915171A publication Critical patent/FR915171A/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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR915171D 1945-09-28 1945-09-28 Dispositif amplificateur des courants téléphoniques Expired FR915171A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR915171T 1945-09-28

Publications (1)

Publication Number Publication Date
FR915171A true FR915171A (fr) 1946-10-29

Family

ID=9422704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915171D Expired FR915171A (fr) 1945-09-28 1945-09-28 Dispositif amplificateur des courants téléphoniques

Country Status (1)

Country Link
FR (1) FR915171A (fr)

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