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Cotton-Harvesting Machine

Patent for cotton harvesting machines.

Date: January 2, 1917

Creator: Lightfoot, Exta

Partner: UNT Libraries Government Documents Department

Apparatus for Demonstrating and Testing Piston Packing Rings

Patent for an apparatus that allows for a more accurate and efficient way to test piston packing rings by measuring ease of movement.

Date: October 2, 1917

Creator: Holland, Kirk D.

Partner: UNT Libraries Government Documents Department

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