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4 Matching Results
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Boll-Weevil Exterminator
Patent for removing dead bolls, insects and other parasites from growing plants.
Date:
February 26, 1918
Creator:
Harper, William E.
System:
The Portal to Texas History
Pipe Lifting and Lowering Jack.
Patent for a pipe lifting and lowering jack that will hold pipes at various positions in wells.
Date:
February 27, 1912
Creator:
Smith, Thomas Monroe
System:
The Portal to Texas History
Support for Buggy-Tops.
Patent for support for Buggy-Tops is the patent that describes about new technique of planting a crops with
Date:
February 24, 1903
Creator:
Brown, William F.
System:
The Portal to Texas History
Windmill.
Patent for an improved windmill which allows for the conversion of "a rotating motion into a reciprocatory motion" (line 15-16) which allows the windmill to be "manufactured and sold at a comparatively low rate" (line 41-43).
Date:
February 8, 1921
Creator:
Cryer, Henry M.
System:
The Portal to Texas History