Process of Refining Crude Mineral Oils and their Distillates. (open access)

Process of Refining Crude Mineral Oils and their Distillates.

Patent for a process for the purification of crude oils using a variety of chemical processes.
Date: September 24, 1901
Creator: Thiele, Felix C.
System: The Portal to Texas History
Railway-Ticket, &c. (open access)

Railway-Ticket, &c.

Patent "to furnish for railway-companies a form of excursion-ticket whose return portion or stop-over portion, as the case may be, is not capable of successful use by scalpers" (lines 11-15).
Date: July 9, 1901
Creator: Smith, Lowndes G.
System: The Portal to Texas History