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Improvement in Car-Couplings.

Description: Patent for an improved train car-coupling, including illustrations.
Date: March 30, 1875
Creator: Garrett, Charles C.
Partner: UNT Libraries Government Documents Department

Improvement in Air-Cooling Apparatus.

Description: Patent for "the construction and arrangement of a refrigerator for the purpose of cooling and maintaining a low and dry temperature, for preserving fresh meats and vegetables, and for cooling rooms for any purpose." (Lines 10-15) Includes instructions and illustrations.
Date: March 30, 1875
Creator: Hyatt, Frank A.
Partner: UNT Libraries Government Documents Department
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