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Wrench.
Patent for a wrench that allows adjustment to two locked positions with a slot and stud mechanism.
Date:
May 22, 1917
Creator:
Bledsoe, Yancy M.
System:
The Portal to Texas History
Fluid- Dispensing Control
Patent for the improvement of fluid dispensing controls. The invention provides a more efficient way to discharge fluid from a storage container by using compressed air, and valve arrangement.
Date:
April 22, 1919
Creator:
Catron, John J
System:
The Portal to Texas History