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Sanitary Cleansing and Indicating Device for Drinking Vessels.
Patent for a sanitary cleaning and indicating device for drinking vessels, which shows which cups are clean or dirty.
Date:
May 31, 1910
Creator:
Thornton, Charles W.
System:
The Portal to Texas History
Railway-Spike.
Patent for a railroad spike, which locks itself in place.
Date:
July 5, 1910
Creator:
McKnight, Otey J.
System:
The Portal to Texas History