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Cinder block modular diffusor

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Cinder block modular diffusor

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Co-oscillating, volume-changing resonator in the form of a silen

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Co-oscillating, volume-changing resonator in the form of a silen

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Combination sound-deadening board

Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate

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Component for airborne-sound insulation

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Composite material

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Composite panel structure

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Composite sound barrier panel

Acoustics – Sound-modifying means – Sound absorbing panels
Reexamination Certificate

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Composite structure and method of manufacturing it

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Constructional element with acoustic properties

Acoustics – Sound-modifying means – Sound absorbing panels
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