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Can Soldering Machine

Description: Patent for a can soldering machine. This device is designed to solder multiple units of lids to cans. Illustration included.
Date: November 5, 1912
Creator: Irwin, Wiley I.
Partner: UNT Libraries Government Documents Department

Lifting-Jack.

Description: Patent for a mechanical device improvements to lift heavy loads or to apply great forces.
Date: April 29, 1913
Creator: Graves, James M.
Partner: UNT Libraries Government Documents Department
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