FR497699A - Improvements to phonographs - Google Patents

Improvements to phonographs

Info

Publication number
FR497699A
FR497699A FR497699DA FR497699A FR 497699 A FR497699 A FR 497699A FR 497699D A FR497699D A FR 497699DA FR 497699 A FR497699 A FR 497699A
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
French (fr)
Inventor
Constantin Furn
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 FR497699A publication Critical patent/FR497699A/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)
FR497699D 1918-06-25 1918-06-25 Improvements to phonographs Expired FR497699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR497699T 1918-06-25

Publications (1)

Publication Number Publication Date
FR497699A true FR497699A (en) 1919-12-12

Family

ID=1533002

Family Applications (1)

Application Number Title Priority Date Filing Date
FR497699D Expired FR497699A (en) 1918-06-25 1918-06-25 Improvements to phonographs

Country Status (1)

Country Link
FR (1) FR497699A (en)

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