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Improvement in Oscillating Steam-Engine

Description: Patent for improvements to steam-engines that employ oscillating cylinders for the drive-shaft.
Date: July 6, 1869
Creator: Richer, F. C.
Partner: UNT Libraries Government Documents Department

Improved Mode of Preserving Meat.

Description: Patent for a process that claims to preserve meat. The patent includes only instructions and no illustrations.
Date: October 6, 1868
Creator: Perl, M.
Partner: UNT Libraries Government Documents Department

Improvement in Plows

Description: Patent for improvements in the construction of plow-beams to be attached to the front axles of a wagon.
Date: July 6, 1869
Creator: Cummins, A. G. & Cummins, J. R.
Partner: UNT Libraries Government Documents Department
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