3 Matching Results

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Hair Clipper.

Description: Patent for hair clippers that simplifies construction, reduces vibration, and improves efficiency.
Date: May 16, 1922
Creator: Monroe, Collier
Partner: UNT Libraries Government Documents Department

Rock-Drill

Description: Patent for a rock drill design for quick drilling.
Date: August 16, 1921
Creator: Alford, Allen
Partner: UNT Libraries Government Documents Department

Plaiting-Machine.

Description: Patent for a machine that folds or plaits cloth in the desired style.
Date: August 16, 1921
Creator: Odle, Ophelia & Odle, Leo Estelle
Partner: UNT Libraries Government Documents Department
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