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Internal Combustion and Air Compressing Engine
Patent for internal combustion and air compressing engine. Illustration included.
Date:
October 19, 1909
Creator:
Risley, Ward & Risley, Zeph L.
System:
The Portal to Texas History
Hay Rake
Patent for a hay rake. Illustration included.
Date:
August 10, 1909
Creator:
Lamkin, Lonzo D.
System:
The Portal to Texas History
Rotary Reversible Engine
Patent for rotary reversible engine. Illustrations included.
Date:
October 19, 1909
Creator:
Risley, Ward & Risley, Zeph L.
System:
The Portal to Texas History