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Guard.

Description: Patent for a guard for marine vessels against torpedoes.
Date: September 21, 1920
Creator: Muncy, David J.
Partner: UNT Libraries Government Documents Department

Vise for Drilling-Machines

Description: Patent for a vise for drilling-machines with a novel construction and combination of parts. The work is positioned and clamped under the drill.
Date: September 9, 1919
Creator: Joyce, James M.
Partner: UNT Libraries Government Documents Department
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