Inventor Name
Gray, William
Repository
Nebraska State Historical Society
P.O. Box 82554
1500 R Street
Lincoln, NE 68501-2554
402-471-4751
http://www.nebraskahistory.org/lib-arch/index.htm
Physical Description
ca. 300 items
Summary
U.S. and foreign patents relating to Gray’s inventions of an improved pressure cooker and grain, ore, and mineral separators.