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Submarine-Destroyer.

Description: Patent for submarine destroyer that is a projectile of the harpoon type adapted to be dropped from an aeroplane with the purpose to destroy a submarine or other vessel.
Date: November 27, 1917
Creator: Garner, William W.
Partner: UNT Libraries Government Documents Department

Heater.

Description: Patent for a heater, "designed for use in orchards for raising the temperature of the atmosphere at times when frosts or freezing temperature is threatened" (lines 11-14). Illustration included.
Date: November 18, 1919
Creator: Briscoe, Williard H.
Partner: UNT Libraries Government Documents Department
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