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in creator/contributor: "Earnest, David C."  
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Grate Bar

Description: Patent for a grate bar.Illustration included.
Date: October 18, 1910
Creator: Wilderspin, Anderson & Earnest, David C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Grate-Bar.

Description: Patent for a grate bar for furnaces, which allows for proper air distribution in the furnace.
Date: June 28, 1910
Creator: Wilderspin, Anderson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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