Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Railway-Signal
Patent for a railway signal that is activated when the wheels of a train pass over a switch. Illustrations included.
Date:
May 26, 1908
Creator:
Harvey, Albert Wadkins
System:
The Portal to Texas History
Combined Disk Harrow and Land-Roller
Patent for a vehicle that may be used as either a harrow or a roller. Illustrations included.
Date:
May 19, 1908
Creator:
Jackson, Lewis Livingston
System:
The Portal to Texas History