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Journal-Box

Description: Patent for a journal box that requires no disassembly to be replenished. Illustrations included.
Date: July 26, 1910
Creator: McFadden, John M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Fuel-Changing Valve.

Description: Patent for Automatic Fuel Changing Valve. The purpose of the invention is to provide a mechanism that switches to another gas supply when the one which is feeding the system runs low.
Date: March 26, 1918
Creator: Connelly, John S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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