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Vulcanizing Device.
Patent for a vulcanizing device for use on tires.
Date:
December 26, 1911
Creator:
Robbins, James M. & Crew, John F.
System:
The Portal to Texas History
Steam-Engine.
Patent for a two cylinder steam engine.
Date:
September 5, 1911
Creator:
Putman, Lewis S.
System:
The Portal to Texas History
Tie.
Patent for a railway tie that has a stronger attachment to the rails than other models.
Date:
December 26, 1911
Creator:
Wade, James T.
System:
The Portal to Texas History