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

Ulrich H. von Waldegge

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Adjustable chair backrest mechanism using pneumatic and mechanic

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

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Backrest for chairs

Chairs and seats – Bottom or back with means to alter contour
Patent

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Profile ID: LFUS-PAI-P-1735057

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