FR742932A - - Google Patents

Info

Publication number
FR742932A
FR742932A FR742932DA FR742932A FR 742932 A FR742932 A FR 742932A FR 742932D A FR742932D A FR 742932DA FR 742932 A FR742932 A FR 742932A
Authority
FR
France
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)
Publication date
Application granted granted Critical
Publication of FR742932A publication Critical patent/FR742932A/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)
FR742932D Expired FR742932A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR742932A true FR742932A (cg-RX-API-DMAC7.html) 1933-03-18

Family

ID=1547261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR742932D Expired FR742932A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR742932A (cg-RX-API-DMAC7.html)

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