Collection
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Milk-Cooler
Patent for a milk cooler that may be used to keep milk or other food items chilled without the use of ice. Illustrations included
Date:
June 2, 1908
Creator:
Hay, Perrie
System:
The Portal to Texas History
Roller Bearing
Patent for Roller Bearing
Date:
January 2, 1917
Creator:
Galbraith, David G.
System:
The Portal to Texas History