4 Matching Results

This system will be undergoing maintenance June 27th between 9:00AM and 12:00PM CDT.

Search Results

Results: 1 - 4

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.
Partner: UNT Libraries Government Documents Department

Telephone System.

Description: Patent for a telephone system that can be used for long distance calls.
Date: September 26, 1911
Creator: McKibben, Charles W.
Partner: UNT Libraries Government Documents Department

Process of Making Aromatic Hydrocarbons

Description: Patent for an invention that relates to processes of making aromatic hydrocarbons, and comprises a method of producing lower boiling aromatic hydrocarbons.
Date: June 26, 1917
Creator: Alexander, Clive M.
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.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen