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6 Matching Results
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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.
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
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.
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
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.
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