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3 Matching Results
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Trapping Device.
Patent for a fish trapping device.
Date:
January 9, 1912
Creator:
Rains, George M.
System:
The Portal to Texas History
Underreamer.
Patent for an underreamer that will be used to ensure that the well casing is clean. Its construction is simple and can be made cheaper than older devices of the same type.
Date:
February 9, 1914
Creator:
Pippin, John W.
System:
The Portal to Texas History
Insect Destroying Machine
Patent for "certain new and useful Improvements in Insect-Destroying Machines,"(lines 6-7) including description and illustrations.
Date:
September 9, 1904
Creator:
Doak, John S.
System:
The Portal to Texas History