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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.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

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

Item Type: Patent

Partner: UNT Libraries Government Documents Department

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.

Item Type: Patent

Partner: UNT Libraries Government Documents Department