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 (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH545523A true CH545523A (it) 1974-01-31

Family

ID=4432765

Family Applications (1)

Application Number Title Priority Date Filing Date
CH545523D CH545523A (it) 1972-12-18 1972-12-18

Country Status (4)

Country Link
BE (1) BE808777A (it)
CH (1) CH545523A (it)
FR (1) FR2211161A5 (it)
IT (1) IT1000328B (it)

Also Published As

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

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Legal Events

Date Code Title Description
PL Patent ceased