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Polishing-Machine

Description: Patent for a metal polisher. Illustrations included.
Date: December 10, 1907
Creator: Nichols, Charlie M.
Partner: UNT Libraries Government Documents Department

Piston-Rod Packing.

Description: Patent for a piston packing device to decrease the wear on pistons in oil pumps.
Date: December 31, 1907
Creator: Martin, Robert Edward Lee
Partner: UNT Libraries Government Documents Department
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