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Plow.

Description: Patent for a new and improved plow. This design "relates to that type of plows in which a double share is employed, one of which turns the sod or furrow in one direction and the other in the opposite direction, said plow being capable of being brought alternately into action, each to turn a furrow in the same direction in right or left turn plowing. . . . whereby the duplex plows may be alternately raised and lowered, and held in either the non-acting or operative positions. . . . and simple me… more
Date: September 17, 1889
Creator: Leas, James W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Toy

Description: Patent for improvements in the construction, arrangement, and combination of parts used in building articulated toy snakes that mimic the animal's movement. The patent and illustrations describe the shapes of the toy's sections and the manner of their hinged connection to one another.
Date: September 19, 1922
Creator: Davis, William Theodore
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Apparatus for Treating Ankylosis of the Knee

Description: Patent for an apparatus for treating knee ankylosis that is ready to use at a moments notice "without unnecessary or nervous shock to the invalid to apply the requisite heat, extension, and flexion to an afflicted part to render it supple and restore to its natural functions". (lines 11-15).
Date: September 19, 1905
Creator: Norwood, Robert R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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