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Automatic-Cut-Off
Patent for an automatic cut-off part for a steam inlet pipe.
Date:
March 1, 1921
Creator:
La Bauve, William H.
System:
The Portal to Texas History
Ditch-Filling Machine
Patent for a Ditch-Filling Machine, focusing on improved operational efficiency and cost-effectiveness. The upgraded machine boasts user-friendly features, making it easily operable, while simultaneously reducing production costs in comparison to its predecessor.
Date:
August 9, 1921
Creator:
Witt, William C.
System:
The Portal to Texas History
Traction-Support.
Patent for a traction board for placing under automobile wheels when stuck in sand or mud, and hanging device for carrying the boards when not in use.
Date:
December 27, 1921
Creator:
Gentry, Burney C.
System:
The Portal to Texas History