Resource Type

Syringe (open access)

Syringe

Patent for a syringe. Illustrations included.
Date: December 15, 1908
Creator: Hill, Hiram McClung & Farrington, Charles Oliphint
System: The Portal to Texas History
Dry Ore Concentrator (open access)

Dry Ore Concentrator

Patent for a dry ore concentrator. Illustrations included.
Date: December 15, 1903
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System: The Portal to Texas History