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

Weijia Wen

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Acoustic attenuation materials

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

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Bistable electromagnetic relay

Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Reexamination Certificate

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Composite materials with negative elastic constants

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Reexamination Certificate

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Display apparatus

Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate

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Electrorheological clutch

192 clutches and power-stop control – Field responsive frictional media type
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Profile ID: LFUS-PAI-P-2390051

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