IMPACT-EFFECT SOUND GENERATOR Russian patent published in 2005 - IPC

Abstract RU 2252455 C1

FIELD: sound impact generators.

SUBSTANCE: device has plate, upper surface of which has stepped contour, formed by acoustic elements in form of ring-shaped shelves with areas.

EFFECT: higher efficiency.

1 cl, 2 dwg

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Authors

Dates

2005-05-20—Published

2003-09-18—Filed