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FR640718A - Improvements to talking machines - Google Patents

Improvements to talking machines

Info

Publication number
FR640718A
FR640718A FR640718DA FR640718A FR 640718 A FR640718 A FR 640718A FR 640718D A FR640718D A FR 640718DA FR 640718 A FR640718 A FR 640718A
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
Attila Pedery
Erno Szava
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 filed Critical
Application granted granted Critical
Publication of FR640718A publication Critical patent/FR640718A/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)
FR640718D 1927-09-09 1927-09-09 Improvements to talking machines Expired FR640718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR640718T 1927-09-09

Publications (1)

Publication Number Publication Date
FR640718A true FR640718A (en) 1928-07-20

Family

ID=8997646

Family Applications (1)

Application Number Title Priority Date Filing Date
FR640718D Expired FR640718A (en) 1927-09-09 1927-09-09 Improvements to talking machines

Country Status (1)

Country Link
FR (1) FR640718A (en)

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