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4 Matching Results
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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
Patent for a pneumatic knee pad. Illustration included.
Date:
June 23, 1908
Creator:
Gibbs, Paalgo P.
System:
The Portal to Texas History
Headwear
Patent for headwear. Illustrations included.
Date:
August 23, 1904
Creator:
Brown, Bettie
System:
The Portal to Texas History
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