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Grate-Bar.
Patent for a grate bar for furnaces, which allows for proper air distribution in the furnace.
Date:
June 28, 1910
Creator:
Wilderspin, Anderson
System:
The Portal to Texas History
Washing Machine
Patent for a washing machine. Illustration included.
Date:
March 28, 1911
Creator:
Vines, James W.
System:
The Portal to Texas History