4. Chairs and seats
  5. Back movement resiliently opposed in operating position
  6. Constantly oriented during up-and-down movement

Jeffrey D. Crawford

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Back support tilt and seat and back support height control mecha

Chairs and seats – Back movement resiliently opposed in operating position – Constantly oriented during up-and-down movement
Patent

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Methods and systems for synchronizing timecodes when sending...

Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate

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Single piece chair shell

Chairs and seats – Bottom or back – Directly connected bottom and back
Patent

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Table top assembly

Supports – Stand – Understructure
Patent

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