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3 Matching Results
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Post Hole Digger
Patent for post hole digger with a simple construction which can be manufactured at a comparatively smaller cost.
Date:
December 22, 1914
Creator:
Day, James M.
System:
The Portal to Texas History
Clothes-Pin.
Patent for a clothes pin that is durable and strong.
Date:
December 7, 1909
Creator:
French, Alfonso Claude
System:
The Portal to Texas History
Portable Derrick.
Patent for improvements to derricks which make them portable and easily manipulated. Includes instructions and illustrations.
Date:
July 15, 1891
Creator:
Hurd, George Murray
System:
The Portal to Texas History