Milk-Cooler (open access)

Milk-Cooler

Patent for a device used for cooling milk consisting of "a vessel adapted to contain any desired quantity of milk, of a cloth or fabric covering enclosing said milk receiving vessel and provided at an intermediate portion of it's length with a series of openings or perforations, and means of saturating said inclosing cloth with water" (lines 13-19).
Date: January 24, 1893
Creator: Nerger, Charles G.
System: The Portal to Texas History
Mousetrap (open access)

Mousetrap

Patent for a mousetrap that is an improvement to the average mousetrap, but new in the sense that it can be made in various proportions or sizes for a variety of vermin.
Date: January 24, 1922
Creator: Spencer, Clarence E.
System: The Portal to Texas History