4. Acoustics
  5. Sound-modifying means
  6. Sound absorbing fence or screen

Keiichiro Mizuno

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Device for controlling a propagation direction of noise

Railway rolling stock – Sound deadeners
Patent

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Device for controlling a propagation direction of noise

Acoustics – Sound-modifying means – Sound absorbing fence or screen
Patent

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Elastic wheel

Resilient tires and wheels – Spring wheels – Spring encircling rigid annulus
Reexamination Certificate

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Elastic wheel

Resilient tires and wheels – Spring wheels – Spring encircling rigid annulus
Reexamination Certificate

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Electronic noise attenuation method and apparatus for use in eff

Electrical audio signal processing systems and devices – Acoustical noise or sound cancellation – Adjacent ear
Patent

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Profile ID: LFUS-PAI-P-124820

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