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Knee Pad.
Patent for an improved knee pad, which provides better ventilation and cushioning to the knee, including illustrations.
Date:
November 21, 1922
Creator:
Rylander, Parrish H.
System:
The Portal to Texas History
Device for Washing Oil Wells.
Patent for "a device for washing, cleaning, and sterilizing oil wells" (lines 10-11), including illustrations.
Date:
November 21, 1922
Creator:
Smith, Edward D. & Smith, Rebah Tillery
System:
The Portal to Texas History
Vehicle.
Patent for improvements to vehicle structure. This includes adjustments to the wheel base for better steering movements and vehicle capacity.
Date:
November 21, 1922
Creator:
Furlong, Martin J.
System:
The Portal to Texas History