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Air-Chamber.

Description: Patent for an air-chamber that pumps in air confined with a flexible diaphragm to spray or diffuse fluid, including illustration.
Date: June 18, 1861
Creator: Creuzbaur, Robert
Partner: UNT Libraries Government Documents Department

[Letter to Asbury, from O. Fisher]

Description: Letter to Orceneth Asbury Fisher from his father, Orceneth Fisher discussing their work in the church and news of acquaintances and family. He also mentions the imminent civil war.
Date: March 18, 1861
Creator: Fisher, Orceneth, 1803-1880
Partner: Southwestern University
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