FR424985A - Perfectionnements aux machines parlantes - Google Patents

Perfectionnements aux machines parlantes

Info

Publication number
FR424985A
FR424985A FR424985DA FR424985A FR 424985 A FR424985 A FR 424985A FR 424985D A FR424985D A FR 424985DA FR 424985 A FR424985 A FR 424985A
Authority
FR
France
Prior art keywords
talking machines
talking
machines
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
Guillaume Ballu
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.)
GUILLAUME BALLU
Original Assignee
GUILLAUME BALLU
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 GUILLAUME BALLU filed Critical GUILLAUME BALLU
Application granted granted Critical
Publication of FR424985A publication Critical patent/FR424985A/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)
FR424985D 1910-03-26 1910-03-26 Perfectionnements aux machines parlantes Expired FR424985A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR424985T 1910-03-26

Publications (1)

Publication Number Publication Date
FR424985A true FR424985A (fr) 1911-05-30

Family

ID=1467684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR424985D Expired FR424985A (fr) 1910-03-26 1910-03-26 Perfectionnements aux machines parlantes

Country Status (1)

Country Link
FR (1) FR424985A (fr)

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