4. Chairs and seats
  5. Back movement resiliently opposed in operating position
  6. Back adjusts independent of seat

James L. Kusiak

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Adjustable backrest for a chair

Chairs and seats – Back movement resiliently opposed in operating position – Back adjusts independent of seat
Patent

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Battery storage tray

Equipment for production – distribution – or transformation of ene – Energy conversion or transformation – Element or attachment
Patent

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Centrifugal water pump

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Vane or deflector
Patent

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Marine propeller with breakaway hub

Marine propulsion – Screw propeller
Patent

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Profile ID: LFUS-PAI-P-847919

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