Insecticide-Holder. (open access)

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.
System: The Portal to Texas History
Attachment for Broadcast Headers. (open access)

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.
System: The Portal to Texas History
Well-Casing Extractor (open access)

Well-Casing Extractor

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.}
System: The Portal to Texas History
Trap. (open access)

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.
System: The Portal to Texas History
Powder- Sprayer (open access)

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.
System: The Portal to Texas History
Insecticide-Dispensing Receptacle. (open access)

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.
System: The Portal to Texas History