FR455568A - Perfectionnements aux gramophones ou appareils analogues - Google Patents

Perfectionnements aux gramophones ou appareils analogues

Info

Publication number
FR455568A
FR455568A FR455568DA FR455568A FR 455568 A FR455568 A FR 455568A FR 455568D A FR455568D A FR 455568DA FR 455568 A FR455568 A FR 455568A
Authority
FR
France
Prior art keywords
gramophones
similar devices
similar
devices
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
Louis Claude Joseph Bouracier
Eugene Philibert Bouracier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR455568A publication Critical patent/FR455568A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR455568D 1913-03-14 1913-03-14 Perfectionnements aux gramophones ou appareils analogues Expired FR455568A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR455568T 1913-03-14

Publications (1)

Publication Number Publication Date
FR455568A true FR455568A (fr) 1913-08-04

Family

ID=1495434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR455568D Expired FR455568A (fr) 1913-03-14 1913-03-14 Perfectionnements aux gramophones ou appareils analogues

Country Status (1)

Country Link
FR (1) FR455568A (fr)

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