FR431293A - Improvement in phonographs - Google Patents

Improvement in phonographs

Info

Publication number
FR431293A
FR431293A FR431293DA FR431293A FR 431293 A FR431293 A FR 431293A FR 431293D A FR431293D A FR 431293DA FR 431293 A FR431293 A FR 431293A
Authority
FR
France
Prior art keywords
phonographs
improvement
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
Eugene-Alexandre Laroche
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.)
EUGENE ALEXANDRE LAROCHE
Original Assignee
EUGENE ALEXANDRE LAROCHE
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 EUGENE ALEXANDRE LAROCHE filed Critical EUGENE ALEXANDRE LAROCHE
Application granted granted Critical
Publication of FR431293A publication Critical patent/FR431293A/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)
FR431293D 1911-06-19 1911-06-19 Improvement in phonographs Expired FR431293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR431293T 1911-06-19

Publications (1)

Publication Number Publication Date
FR431293A true FR431293A (en) 1911-11-07

Family

ID=1473467

Family Applications (1)

Application Number Title Priority Date Filing Date
FR431293D Expired FR431293A (en) 1911-06-19 1911-06-19 Improvement in phonographs

Country Status (1)

Country Link
FR (1) FR431293A (en)

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