CH545523A - - Google Patents

Info

Publication number
CH545523A
CH545523A CH545523DA CH545523A CH 545523 A CH545523 A CH 545523A CH 545523D A CH545523D A CH 545523DA CH 545523 A CH545523 A CH 545523A
Authority
CH
Switzerland
Application number
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
Publication of CH545523A publication Critical patent/CH545523A/xx

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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
CH545523D 1972-12-18 1972-12-18 CH545523A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1840472 1972-12-18

Publications (1)

Publication Number Publication Date
CH545523A true CH545523A (en:Method) 1974-01-31

Family

ID=4432765

Family Applications (1)

Application Number Title Priority Date Filing Date
CH545523D CH545523A (en:Method) 1972-12-18 1972-12-18

Country Status (4)

Country Link
BE (1) BE808777A (en:Method)
CH (1) CH545523A (en:Method)
FR (1) FR2211161A5 (en:Method)
IT (1) IT1000328B (en:Method)

Also Published As

Publication number Publication date
BE808777A (fr) 1974-04-16
FR2211161A5 (en) 1974-07-12
IT1000328B (it) 1976-03-30

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Legal Events

Date Code Title Description
PL Patent ceased