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Improvement in Throttle-Valve Stands and Stems.

Description: Patent for "a new arrangement of support for the stem of a throttle-valve, and has for its object to facilitate the lubricating of the screw and cause the parts to be firmly held in place." (Lines 19-23) Includes instructions and illustrations.
Date: April 2, 1872
Creator: Compant, John M. & Krauskopf, Engelbert
Partner: UNT Libraries Government Documents Department

Improvements in Mattress-Stuffers.

Description: Patent for an improved mattress stuffer with a horizontal case and a hinged cover.
Date: April 2, 1872
Creator: Watson, Thomas A.
Partner: UNT Libraries Government Documents Department

Improvement in Preserving Meat, &c.

Description: Patent for a method of preserving meat, vegetables, and other foods in an air-tight container using hydrogen gas and displaced water.
Date: April 2, 1872
Creator: Gillespie, William A.
Partner: UNT Libraries Government Documents Department
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