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Trap

Description: Patent for a steel animal trap. Illustrations included.
Date: April 30, 1912
Creator: Davidson, David L.
Partner: UNT Libraries Government Documents Department

Magneto-Contact.

Description: Patent for magneto contacts, designed for easy removal, cleaning, and replacement, without short circuits, featuring novel construction features and parts arrangements.
Date: April 26, 1921
Creator: Rigsby, Virgi
Partner: UNT Libraries Government Documents Department
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