Resource Type
Counties
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Land Bedder And Cultivator.
Patent for a new and useful land bedder and cultivator, including instructions and illustrations.
Date:
August 9, 1898
Creator:
Parker, Middleton N.
System:
The Portal to Texas History
Engine-Valve.
Patent for an engine valve for air brake systems on trains, which governs the pressure of air released and keeps it steady.
Date:
August 9, 1910
Creator:
Dillander, John
System:
The Portal to Texas History