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Trap.

Description: Patent for animal trap especially designed for trapping rats, mice, minks and other small animals. This animal trap has a pair of pivoted doors arranged on the opposite sides of a baiting standard, which is also vertically adjustable. The purpose of this trap is to drown the animals that have become entrapped.
Date: February 1, 1921
Creator: Wigington, William L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Well-Casing Extractor

Description: Patent for a well-casing extractor that provides gripping rollers for engaging the casing, provides a supporting frame for the movable parts of the apparatus, and provides the means to drive the rollers by power or hand.
Date: August 16, 1921
Creator: Price, Filmore M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Insecticide-Holder.

Description: Patent for an insecticide holder having improved and "novel means for discharging the insecticide" (lines 10-11).
Date: May 3, 1921
Creator: Irwin, Herbert G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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