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Flue Expander

Description: Patent for a flue expander. This invention is a tool for expanding boiler flues in flue sheets. Illustration included.
Date: November 15, 1904
Creator: Player, James Arthur
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cattle Guard

Description: Patent for a cattle guard. This cattle guard is a useful improvement in use on railway-tracks.
Date: September 15, 1903
Creator: Frownfelter, George C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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