Resource Type
Counties
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Well-Digging Machine.
Patent for an improved oil well digging machine.
Date:
December 1, 1908
Creator:
Clack, Judge H.
System:
The Portal to Texas History
Joint-Chair.
Patent for a joint chair for holding railroad rails in place.
Date:
December 13, 1910
Creator:
Ewen, William E.
System:
The Portal to Texas History