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Compound Valve
Patent for an invention with improvements of devices that employed for controlling the flow of liquid under high pressure which simplify and improve the construction.
Date:
October 28, 1918
Creator:
Cherry, Joseph C.
System:
The Portal to Texas History
Insulator and Support
Patent for an insulator and support for communication lines.
Date:
May 28, 1912
Creator:
Gressett, Lawrence F.
System:
The Portal to Texas History