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Air-Pipe Coupling.
Patent for an improved air-pipe coupling that is airtight and watertight and has a flexible union for railroad cars.
Date:
May 2, 1893
Creator:
Thomas, James Bryant
System:
The Portal to Texas History
Improvement in Horse-Powers
Patent for an improvement in Horse Powers and in it's construction.
Date:
September 2, 1879
Creator:
Smith, William W. & Randall, John C.
System:
The Portal to Texas History