FR675079A - Perfectionnements aux phonographes - Google Patents

Perfectionnements aux phonographes

Info

Publication number
FR675079A
FR675079A FR675079DA FR675079A FR 675079 A FR675079 A FR 675079A FR 675079D A FR675079D A FR 675079DA FR 675079 A FR675079 A FR 675079A
Authority
FR
France
Prior art keywords
phonographs
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
Jean Kressmann
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 FR675079A publication Critical patent/FR675079A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR675079D 1928-09-27 1928-09-27 Perfectionnements aux phonographes Expired FR675079A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR675079T 1928-09-27

Publications (1)

Publication Number Publication Date
FR675079A true FR675079A (fr) 1930-02-05

Family

ID=9019141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR675079D Expired FR675079A (fr) 1928-09-27 1928-09-27 Perfectionnements aux phonographes

Country Status (1)

Country Link
FR (1) FR675079A (fr)

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