UNT Libraries Government Documents Department - 6 Matching Results

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Powder- Sprayer

Patent for Insect Powder Sprayer. This sprayer allows the use of insecticide powder for use on animals, plants, and insects.

Date: November 30, 1920

Creator: Erwin, Samuel D.

Item Type: Patent

Insecticide-Dispensing Receptacle.

Patent for an improved insecticide dispensing receptacle, made cheaply enough it can be disposed of after use.

Date: March 1, 1921

Creator: Irwin, Herbert G.

Item Type: Patent

Insecticide-Holder.

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: Patent

Attachment for Broadcast Headers.

Patent for harvesting machines that provisions for adjustable attachments and elevator mechanisms used to head maize or similar grain crops.

Date: July 28, 1920

Creator: Price, Filmore M.

Item Type: Patent

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: Patent

Trap.

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: Patent

UNT Libraries Government Documents Department - 6 Matching Results

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Powder- Sprayer

Insecticide-Dispensing Receptacle.

Insecticide-Holder.

Attachment for Broadcast Headers.

Well-Casing Extractor

Trap.