4. Flexible or portable closure, partition, or panel
  5. Plural and/or with rigid closure
  6. Diverse types

Chou Yen

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Double-layer window with shade roller unit for regulating the li

Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent

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Liquid display device for regulating the light passing through

Optical: systems and elements – Light control by opaque element or medium movable in or... – Fluid
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Profile ID: LFUS-PAI-P-1160343

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