FR654845A - Phonographic recording and reproduction process and devices allowing the realization - Google Patents

Phonographic recording and reproduction process and devices allowing the realization

Info

Publication number
FR654845A
FR654845A FR654845DA FR654845A FR 654845 A FR654845 A FR 654845A FR 654845D A FR654845D A FR 654845DA FR 654845 A FR654845 A FR 654845A
Authority
FR
France
Prior art keywords
realization
reproduction process
devices allowing
phonographic recording
phonographic
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
Antonio Canet
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 FR654845A publication Critical patent/FR654845A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR654845D 1928-05-25 1928-05-25 Phonographic recording and reproduction process and devices allowing the realization Expired FR654845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR654845T 1928-05-25

Publications (1)

Publication Number Publication Date
FR654845A true FR654845A (en) 1929-04-11

Family

ID=9006720

Family Applications (1)

Application Number Title Priority Date Filing Date
FR654845D Expired FR654845A (en) 1928-05-25 1928-05-25 Phonographic recording and reproduction process and devices allowing the realization

Country Status (1)

Country Link
FR (1) FR654845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010037978A2 (en) 2008-10-01 2010-04-08 Compagnie Industrielle Et Financiere D'ingenierie "Ingenico" Electronic payment terminal with an improved display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010037978A2 (en) 2008-10-01 2010-04-08 Compagnie Industrielle Et Financiere D'ingenierie "Ingenico" Electronic payment terminal with an improved display

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