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Air Brake
Patent for air brakes. Illustration included.
Date:
March 21, 1905
Creator:
Minnick, Hezekiah
System:
The Portal to Texas History
Combined Land Roller, Furrow Opener, And Marker
Patent for a device that combines the function of a land-roller, furrow opener, and marker. Illustration included.
Date:
March 13, 1906
Creator:
MacDonell, Allan
System:
The Portal to Texas History