Resource Type
Counties
4 Matching Results
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Wire-Cutter
Patent for a wire cutter specifically for hay bale ties.
Date:
November 26, 1912
Creator:
Grogan, Edward W.
System:
The Portal to Texas History
Underreamer
Patent for an under-reamer for use in drilling oil wells.
Date:
September 10, 1912
Creator:
Wagner, Warren
System:
The Portal to Texas History
Shut-Off Head for Casings and The Like
Patent for a shut-off head for casings in oil wells.
Date:
September 10, 1912
Creator:
Wagner, Warren
System:
The Portal to Texas History
Desk-Cabinet
Patent for a metal desk cabinet for holding office supplies.
Date:
November 26, 1912
Creator:
Grogan, Edward W.
System:
The Portal to Texas History