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Window Weight

Description: Patent for a window weight. Illustration included.
Date: October 18, 1910
Creator: Maupin, Frank L.
Partner: UNT Libraries Government Documents Department

Door-Lock

Description: Patent for a lock which can be attached to either a right-hand or left-hand door and operated from either side. When locked from the inside, a shutter will prevent the door from being unlocked from the outside until released again from the inside.
Date: January 12, 1915
Creator: Wilson, Ira W.
Partner: UNT Libraries Government Documents Department