4. Supports
  5. Stand
  6. Standard type

Patrick C. Nelson

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Chair

Chairs and seats – Back movement resiliently opposed in operating position – Back and bottom adjust in a fixed relationship
Reexamination Certificate

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Height-Adjustable chair arm assembly having cam-type adjusting m

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

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Height-adjustment mechanism for a chair

Chairs and seats – Movable back
Reexamination Certificate

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Split nut mechanical height adjusting mechanism for chair

Supports – Stand – Standard type
Patent

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Tilt mechanism for chair having adjustable spring...

Chairs and seats – Back movement resiliently opposed in operating position – Back and bottom adjust in a fixed relationship
Reexamination Certificate

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Profile ID: LFUS-PAI-P-588565

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