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Shock Absorber

Description: Patent for a new and improved shock absorber which is "primarily intended for use as a connecting and cushioning medium between the upper and lower springs commonly employed under automobile bodies" (lines 12-15), including illustrations.
Date: November 28, 1922
Creator: von Roeder, Benno Gilbert & Oates, Eugene Caroway
Partner: UNT Libraries Government Documents Department

Constant-Volume Valve.

Description: Patent for an improved constant-volume valve that helps regulate the flow of liquid through a passage with an automatic valve.
Date: February 28, 1922
Creator: Dewey, Maurice J.
Partner: UNT Libraries Government Documents Department
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