FR706782A - Acoustic horn for talking machines or the like - Google Patents

Acoustic horn for talking machines or the like

Info

Publication number
FR706782A
FR706782A FR706782DA FR706782A FR 706782 A FR706782 A FR 706782A FR 706782D A FR706782D A FR 706782DA FR 706782 A FR706782 A FR 706782A
Authority
FR
France
Prior art keywords
acoustic horn
talking machines
talking
machines
horn
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
Leo Heinrich
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 FR706782A publication Critical patent/FR706782A/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)
FR706782D 1930-09-20 1930-12-01 Acoustic horn for talking machines or the like Expired FR706782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE706782X 1930-09-20

Publications (1)

Publication Number Publication Date
FR706782A true FR706782A (en) 1931-06-29

Family

ID=6617240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR706782D Expired FR706782A (en) 1930-09-20 1930-12-01 Acoustic horn for talking machines or the like

Country Status (1)

Country Link
FR (1) FR706782A (en)

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