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Refrigerator

Description: Patent for improvements for vacuum refrigerators such that cold air circulation and heat exclusion are improved, including illustrations.
Date: June 27, 1922
Creator: Knutson, William K.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Can Opener

Description: Patent for a can opener which cuts cleanly and rapidly around the outside wall of the can, so as to avoid jagged edges.
Date: February 14, 1922
Creator: Minor, Robert B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Counter.

Description: Patent for improvements to store counters that can be easily constructed in whatever form fits the user.
Date: July 18, 1922
Creator: Jones, Laurence E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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