FR801656A - Improvements in methods and apparatus for directing sound - Google Patents

Improvements in methods and apparatus for directing sound

Info

Publication number
FR801656A
FR801656A FR801656DA FR801656A FR 801656 A FR801656 A FR 801656A FR 801656D A FR801656D A FR 801656DA FR 801656 A FR801656 A FR 801656A
Authority
FR
France
Prior art keywords
methods
directing sound
directing
sound
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
Douglas Stuart Spens Steuart
Nina Benita Mary Douglas-Ham D
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 FR801656A publication Critical patent/FR801656A/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)
FR801656D 1934-12-10 1935-12-06 Improvements in methods and apparatus for directing sound Expired FR801656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB801656X 1934-12-10

Publications (1)

Publication Number Publication Date
FR801656A true FR801656A (en) 1936-08-12

Family

ID=10513526

Family Applications (1)

Application Number Title Priority Date Filing Date
FR801656D Expired FR801656A (en) 1934-12-10 1935-12-06 Improvements in methods and apparatus for directing sound

Country Status (1)

Country Link
FR (1) FR801656A (en)

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