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Lubricated Bullet.
Patent for lubricated lead bullets to prevent the deterioration and rusting of the inner barrel of rifled firearms, so as to maintain their accuracy. Includes instructions and illustrations.
Date:
August 3, 1897
Creator:
Stewardson, Samuel Clinton
System:
The Portal to Texas History
Safety-Valve for Pneumatic Tires.
Patent for a safety valve for pneumatic tires that prevents the tire from exploding from excess pressure.
Date:
October 3, 1911
Creator:
Burkett, Bruce
System:
The Portal to Texas History