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Flush-Valve
Patent for a flush valve designed for efficiency.
Date:
September 13, 1921
Creator:
Winckler, Henry J.
System:
The Portal to Texas History
Air-Brake and Starter for Automobiles.
Patent for multiple innovations to automobile air-brakes and starters, including improvements such as ease of use, reliability, and versatility amongst vehicle models.
Date:
December 13, 1921
Creator:
Green, Herbert
System:
The Portal to Texas History