UNT Libraries Government Documents Department - 6 Matching Results

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Design patent for a boomerang.

Date: November 21, 1899

Creator: Berry, James H.

Item Type: Patent

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

Patent for an oil burner. Illustration included.

Date: November 21, 1905

Creator: Cox, Emelious Aubrey

Item Type: Patent

Patent for a roller-bearing that allows the thrust of a shaft to go in an outward direction.

Date: November 21, 1911

Creator: Layne, Mahlon E.

Item Type: Patent

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

Patent for a well screen. This invention is intended to screen sand used in well drilling. Illustration included.

Date: November 21, 1905

Creator: Layne, Mahlon E.

Item Type: Patent