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Mouse-Guard Attachment for Piano-Pedals

Description: Patent for an attachment to prevent rodents from entering a piano by way of the pedal openings.
Date: February 10, 1914
Creator: Collier, Henry C.
Partner: UNT Libraries Government Documents Department

Attachment for Huller-Gins

Description: Patent for the type of cotton gin known as huller gins. It is an attachment intended to force cotton through portions of the huller gin that often becomes blocked by accumulated detritus.
Date: February 12, 1918
Creator: Prichard, William Mathews
Partner: UNT Libraries Government Documents Department
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