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Insecticide for Boll-Weevils.
Patent for boll-weevil insecticide with novel method of compounding. Arsenic and baking soda are combined with wood ash to create a dust which kills the insects as an inhalent instead of needing to be consumed by the insects in order to be effective.
Date:
November 1, 1921
Creator:
Koenig, Philipp
System:
The Portal to Texas History
Typewriter-Desk.
Patent for typewriter desk which has a compartment with a moveable platform. The platform supports a typewriter, and is "capable of being raised and lowered within the desk so as to position the typewriter for use or non-use as desired". The compartment has a lid, which when in closed position, provides an even writing or resting surface.
Date:
April 26, 1921
Creator:
Beard, Margurite E.
System:
The Portal to Texas History