FR452408A - Improvements to talking machines - Google Patents

Improvements to talking machines

Info

Publication number
FR452408A
FR452408A FR452408DA FR452408A FR 452408 A FR452408 A FR 452408A FR 452408D A FR452408D A FR 452408DA FR 452408 A FR452408 A FR 452408A
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
French (fr)
Inventor
Frederick James Empson
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 FR452408A publication Critical patent/FR452408A/en
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)
FR452408D 1912-12-26 1912-12-26 Improvements to talking machines Expired FR452408A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR452408T 1912-12-26

Publications (1)

Publication Number Publication Date
FR452408A true FR452408A (en) 1913-05-16

Family

ID=1492632

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452408D Expired FR452408A (en) 1912-12-26 1912-12-26 Improvements to talking machines

Country Status (1)

Country Link
FR (1) FR452408A (en)

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