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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.
Partner: UNT Libraries Government Documents Department

Pump-Plunger

Description: Patent for a pump-plunger, concentrating on advancements in the design, particularly catering to deep well operations and environments with challenging conditions, such as oil and water wells where fluids are mixed with sand, sediment, or debris.
Date: October 18, 1921
Creator: Miller, Frank J.
Partner: UNT Libraries Government Documents Department
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