Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Rotary Drilling Apparatus dated November 5, 1918
Patent for a rotary drilling apparatus that specifies in wells and mines.
Date:
November 5, 1918
Creator:
Robert E. Carmichael
System:
The Portal to Texas History
Neck Yoke
Patent for neck yokes, particularly for hogs, but not made especially for hogs.
Date:
December 5, 1916
Creator:
McClure, Cicero F.
System:
The Portal to Texas History