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Piano.
Patent for a new piano "in which the strings are vibrated through the medium of a bow, as in a violin, instead of being struck with hammers in accordance with the usual method" (lines 8-12), including illustrations.
Date:
June 5, 1900
Creator:
Holcombe, Edgar L.
System:
The Portal to Texas History
Thread-cutting Tool.
Patent for a thread cutting tool developed to efficiently thread bolts, rods, and other parts without damaging the ends of the thread, includes illustrations.
Date:
August 5, 1919
Creator:
Newman, Malcolm A.
System:
The Portal to Texas History
Boll Weevil Catcher
The objective of the invention is to improve to catching and destroying boll weevils with a device that is easily attached to a cultivator. This device includes "receptacles filled with an insect destroying liquid." (lines 23-24).
Date:
July 5, 1921
Creator:
Ploch, Alex
System:
The Portal to Texas History