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Silo.

Description: Patent for an improvement of a silo that includes a sliding door, including illustrations.
Date: May 30, 1916
Creator: Barker, Judge F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Burglar-Alarm.

Description: Patent for a burglar alarm device that is triggered by the movement of a door or window, including illustrations.
Date: October 30, 1917
Creator: Alderman, Joseph S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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