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Latch.

Description: Patent for a latch for swinging doors, which can be operated from either side of the door.
Date: May 18, 1909
Creator: Lewis, Oliver
Partner: UNT Libraries Government Documents Department

Fumigator.

Description: Patent for a fumigator for driving out flies or mosquitoes from rooms with kerosene gas.
Date: May 25, 1909
Creator: Hauck, Jacob
Partner: UNT Libraries Government Documents Department

Relay.

Description: Patent for an electric relay "which is normally actuated by weak currents, and adapted when abnormally energized by heavier currents to shift the local current from one connection to another in order to prevent the relay armature from sticking" (lines 10-15).
Date: May 18, 1909
Creator: Rice, Hugh C.
Partner: UNT Libraries Government Documents Department
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