Inventor Name
Bowman, Oliver S.
Repository
Colorado Historical Society
1300 Broadway
Denver, CO 80203-2137
303-866-3682
http://www.coloradohistory.org/
Physical Description
3 ft.
Summary
Chiefly business and personal correspondence relating to a proposed joint project between U.S. Bureau of Mines and Heliopore Laboratory Company. Also included are documents relating to U.S. and Canadian patents on invention.