4. Acoustics
  5. Sound-modifying means
  6. Sound absorbing panels

Zhi Yu Yang

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Sound attenuating structures

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

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Sound attenuating structures

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

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Visible-blind UV detectors

Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2390049

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