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Gas-Burner.

Description: Patent for gas burners that are made for water heaters to prevent "back firing" by building them so that they can be placed on the side of the heater rather than underneath it, so that liquid does not fall on the burner.
Date: May 23, 1916
Creator: Cochran, Harry A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Detachable Drill-Bit.

Description: Patent for a detachable drill bit for use in drilling deep wells via the rotary method, where the bit can be replaced with the drill stem still in the bore.
Date: March 23, 1916
Creator: Carden, David A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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