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Nut-Lock

Description: Patent for a nut lock. Illustrations included.
Date: October 22, 1912
Creator: Martin, George W.
Partner: UNT Libraries Government Documents Department

Nut-Lock

Description: Patent for a nut lock. Illustrations included.
Date: October 22, 1912
Creator: Martin, George W.
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for "improvements in pumps which move a long column of water with each stroke but discharge a relatively small quantity" (lines 10-13) including instructions and illustrations.
Date: May 16, 1911
Creator: Kangas, Frank Oskar
Partner: UNT Libraries Government Documents Department
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