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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
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