Resource Type
Counties
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Roller Bearing
Patent for a roller bearing. Illustration included.
Date:
July 31, 1906
Creator:
Horger, John M. & Horger, Simeon D.
System:
The Portal to Texas History
Rotary Engine
Patent for Rotary Engine with an illustration attached. Created to "[embody] a novel construction and assemblage of the component elements, and [embody] novel means for reversing the engine." (lines 10-15)
Date:
July 3, 1917
Creator:
Martin, Jerry M.
System:
The Portal to Texas History