4. Chairs and seats
  5. Back movement resiliently opposed in operating position
  6. Back and seat adjust simultaneously

Troy Roark

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Height adjusting mechanism

Chairs and seats – Movable back
Reexamination Certificate

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Seating structure and methods for the use thereof

Chairs and seats – Movable bottom – Tiltable
Reexamination Certificate

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Tilt control for chair

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

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Tilt control for chair

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Reexamination Certificate

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Tilt control for chair

Chairs and seats – Back movement resiliently opposed in operating position – Back and seat adjust simultaneously
Patent

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Profile ID: LFUS-PAI-P-788547

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