1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Internal Combustion Engine.
Patent for improved internal combustion engine design that replaces puppet valves with slide valves to increase port area and speed, while reducing noise. Includes illustrations.
Date:
July 9, 1912
Creator:
Garfield, George M.
System:
The Portal to Texas History