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Process of Desulfurizing Oil or Distillate
Patent for a process of desulfurizing oil or distillate.
Date:
July 5, 1904
Creator:
Amend, Otto P.
System:
The Portal to Texas History
Engraving-machine.
Patent for improvements to an engraving machine. Illustrations included.
Date:
July 1, 1902
Creator:
Crane, Walter E.
System:
The Portal to Texas History