FR669306A - Resonance box for talking machines - Google Patents

Resonance box for talking machines

Info

Publication number
FR669306A
FR669306A FR669306DA FR669306A FR 669306 A FR669306 A FR 669306A FR 669306D A FR669306D A FR 669306DA FR 669306 A FR669306 A FR 669306A
Authority
FR
France
Prior art keywords
resonance box
talking machines
talking
machines
resonance
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)
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.)
INNOPHONE SA
Original Assignee
INNOPHONE SA
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 INNOPHONE SA filed Critical INNOPHONE SA
Application granted granted Critical
Publication of FR669306A publication Critical patent/FR669306A/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)
FR669306D 1929-02-07 1929-02-07 Resonance box for talking machines Expired FR669306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR669306T 1929-02-07

Publications (1)

Publication Number Publication Date
FR669306A true FR669306A (en) 1929-11-14

Family

ID=9015654

Family Applications (1)

Application Number Title Priority Date Filing Date
FR669306D Expired FR669306A (en) 1929-02-07 1929-02-07 Resonance box for talking machines

Country Status (1)

Country Link
FR (1) FR669306A (en)

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