Resource Type
Counties
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Valve
Patent for a valve for rotary steam engines.
Date:
November 26, 1912
Creator:
Faulkner, Thomas F.
System:
The Portal to Texas History
Blotting Pad
Patent for an ink blotting pad. Illustration included.
Date:
November 5, 1912
Creator:
Smith, Charles A.
System:
The Portal to Texas History