4. Movable or removable closures
  5. Convex or concave closure and opening

Keizo Fujii

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Circular door operating method and apparatus

Movable or removable closures – Convex or concave closure and opening
Patent

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Rubbing treatment apparatus having roller with specific...

Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Reexamination Certificate

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Profile ID: LFUS-PAI-P-654755

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