Resource Type
Counties
4 Matching Results
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Valve
Patent for a valve. Illustration included.
Date:
August 17, 1909
Creator:
Smith, Frederick C.
System:
The Portal to Texas History
Signal
Patent for a signal that allows trainmasters to move trains in sections. Illustration included.
Date:
August 17, 1909
Creator:
Cairncross, Robert L.
System:
The Portal to Texas History
Pipe Coupling.
Patent for pipe coupling in which the ends of pipes have interlocking attachments which can be both dissembled and reinforced for protection against accidental disengagement.
Date:
August 17, 1920
Creator:
McCullar, Willie A. & Ayraud, Jules J.
System:
The Portal to Texas History
Cuff-Link.
Patent for new and useful improvements in cuff links that do not separate from sleeves and help with any decoration.
Date:
August 17, 1920
Creator:
Hall, James L.
System:
The Portal to Texas History