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Expansion-Plug.

Description: Patent for "an expansion plug wherein a traveling nut cooperates with a screw to expand or contract a sectional plug" (lines 8-11) with illustration.
Date: May 21, 1918
Creator: Barlow, Walter S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mouse-Guard for Pianos.

Description: Patent for "an upright device for closing the opening in the front of a piano directly below a pedal to thereby render the piano mouse proof" (lines 8-11). The device utilizes spring tension to operate.
Date: May 21, 1918
Creator: Bell, Silas D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Hose-Clamp

Description: Patent for "certain new and useful Improvements in Hose-Clamps" (lines 5-6). "It is the object of this invention to provide a clamp which is provided with yieldable slips, which securely clamp the hose to prevent the separation of the hose from the nipple..." (lines 30-34).
Date: May 21, 1918
Creator: Bennett, Clarence D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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