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Improvement in Chairs. (open access)

Improvement in Chairs.

Patent for improvements in chairs: "the back, seat, foot rest, and head rest are all self adjusting, and operated by the natural movements of the occupant" (lines 11-13).
Date: April 16, 1872
Creator: Haupt, William W.
System: The Portal to Texas History
Improvement in Chairs. (open access)

Improvement in Chairs.

Patent for improvement in chairs consisting of self-adjusting chair-backs.
Date: November 5, 1872
Creator: Haupt, William W.
System: The Portal to Texas History