4. Chairs and seats
  5. Armrest
  6. Adjustable to multiple use positions relative to bottom or back

Yao-Chuan Wu

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Adjustable armrest of a chair

Chairs and seats – Armrest – Adjustable to multiple use positions relative to bottom or back
Patent

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Adjustable chassis for chair

Chairs and seats – Movable bottom – Bottom and back movable as a unit
Reexamination Certificate

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Adjustable leg rest

Design Patent

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Backrest assembly

Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Reexamination Certificate

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Backrest frame of a chair

Design Patent

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Profile ID: LFUS-PAI-P-1039245

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