4. Chairs and seats
  5. Movable back

Michael C. Hallmark

Inventor

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Chair back adjustment mechanism

Supports – Brackets – Adjustable
Reexamination Certificate

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Mechanism for chair

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

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Underseat mechanism for a chair

Chairs and seats – Movable back
Patent

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Profile ID: LFUS-PAI-P-1307782

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