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Flying-Machine.

Description: Patent for "a flying machine of the heavier-than-air or aeroplane type" (lines 10-11) that has a central opening. Around the central opening, the front and wings form obtuse dihedral angles, which keep the plane stable.
Date: December 12, 1911
Creator: Herrmann, Ernst W. F.
Partner: UNT Libraries Government Documents Department

Blind-Slat Adjustor

Description: Patent for a blind slat adjuster which can hold the blinds in a variety of different positions.
Date: July 27, 1909
Creator: Hermann, Ernst W. F.
Partner: UNT Libraries Government Documents Department
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