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Closure for Bottles, &c.

Description: Patent for a tamper-proof bottle cap made of flexible metal that expands to seal the bottle and cannot be removed and replaced without signs being evident in the bottle and cap.
Date: April 2, 1907
Creator: Hull, John William
Partner: UNT Libraries Government Documents Department

Arc-Lamp Attachment

Description: Patent for improving arc lamp attachments. The attachment allows an arc lamp to be able to use an incandescent lamp in place of the electrodes in an arc lamp. The attachment increases the efficiency and durability of the arc lamp.
Date: April 2, 1918
Creator: Pratt, James R.
Partner: UNT Libraries Government Documents Department

Ant-Trap

Description: Patent for "a simple device of this kind which will excel the former traps in depositing the ants within the annular pan and in efficiency for convenient discharge of the trapped insects" (lines 18-22).
Date: April 2, 1901
Creator: Inman, Joseph
Partner: UNT Libraries Government Documents Department

[Letter from Harris L. Kempner to His Honor the Mayor and the Board of City Commissioners, April 2, 1957]

Description: Letter from Harris L. Kempner to Mayor George Roy Clough and the Board of City Commissioners of Galveston, Texas discussing the proposal of building a parking lot next to Menard Park and how this will only make traffic and car problems worse in addition to ruining the aesthetic of the park.
Date: April 2, 1957
Creator: Kempner, Harris Leon
Partner: Rosenberg Library
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