FR609250A - Amplificateur téléphonique - Google Patents

Amplificateur téléphonique

Info

Publication number
FR609250A
FR609250A FR609250DA FR609250A FR 609250 A FR609250 A FR 609250A FR 609250D A FR609250D A FR 609250DA FR 609250 A FR609250 A FR 609250A
Authority
FR
France
Prior art keywords
telephone amplifier
telephone
amplifier
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
Octave Despres
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 FR609250A publication Critical patent/FR609250A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR609250D 1926-01-13 1926-01-13 Amplificateur téléphonique Expired FR609250A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR609250T 1926-01-13

Publications (1)

Publication Number Publication Date
FR609250A true FR609250A (fr) 1926-08-11

Family

ID=8976590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR609250D Expired FR609250A (fr) 1926-01-13 1926-01-13 Amplificateur téléphonique

Country Status (1)

Country Link
FR (1) FR609250A (fr)

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