FR412873A - Perfectionnements apportés aux machines parlantes - Google Patents

Perfectionnements apportés aux machines parlantes

Info

Publication number
FR412873A
FR412873A FR412873DA FR412873A FR 412873 A FR412873 A FR 412873A FR 412873D A FR412873D A FR 412873DA FR 412873 A FR412873 A FR 412873A
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
John Clifford English
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 FR412873A publication Critical patent/FR412873A/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)
FR412873D 1909-02-20 1910-02-19 Perfectionnements apportés aux machines parlantes Expired FR412873A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US412873XA 1909-02-20 1909-02-20

Publications (1)

Publication Number Publication Date
FR412873A true FR412873A (fr) 1910-07-25

Family

ID=1456703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR412873D Expired FR412873A (fr) 1909-02-20 1910-02-19 Perfectionnements apportés aux machines parlantes

Country Status (1)

Country Link
FR (1) FR412873A (fr)

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