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Composition of Matter.
Patent for a compound with waterproof and flame-retardant properties in its use as a roofing paint.
Date:
April 2, 1895
Creator:
Freeze, John A.
System:
The Portal to Texas History
Toothbrush.
Patent for a new and improved toothbrush that has a rotary brush which turns while the user brushes it back and forth over their teeth and a hollow stem that sends water to the brush while it is in use.
Date:
November 2, 1920
Creator:
Simon, John
System:
The Portal to Texas History
Reversible and Adjustable Heel-Sweep.
Patent for an adjustable heel sweep for farm equipment, which can cut both wide and narrow angles.
Date:
November 2, 1909
Creator:
Brockman, John H.
System:
The Portal to Texas History