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Apparatus for Use in Obtaining Petroleum Products (open access)

Apparatus for Use in Obtaining Petroleum Products

Patent for an apparatus for use in obtaining petroleum products. Illustrations included.
Date: March 8, 1910
Creator: Frasch, Herman
System: The Portal to Texas History
Utilization of Aluminum-Chlorid Residues - 01206874 (open access)

Utilization of Aluminum-Chlorid Residues - 01206874

Patent for Utilization of Aluminum-Chlorid Residues (no illustration).
Date: March 2, 1915
Creator: McAfee, Almer McDuffie
System: The Portal to Texas History