Casing Spear (open access)

Casing Spear

Patent for a casing spear, "to remove casing within a well or removing a tool which may be dropped within the casing," with accompanying illustrations of the patent.
Date: October 23, 1917
Creator: Wagner, Warren
System: The Portal to Texas History
Pneumatic Knee Pad (open access)

Pneumatic Knee Pad

Patent for a pneumatic knee pad. Illustration included.
Date: June 23, 1908
Creator: Gibbs, Paalgo P.
System: The Portal to Texas History
Headwear (open access)

Headwear

Patent for headwear. Illustrations included.
Date: August 23, 1904
Creator: Brown, Bettie
System: The Portal to Texas History
Display-Stand. (open access)

Display-Stand.

Patent for incorporating vertical shaft in display stands for posters advertising motion pictures and merchandise, with illustrations.
Date: June 23, 1921
Creator: Gates, Norwood
System: The Portal to Texas History