Fibrous material and process of producing it
United States Patent 2011914

Inventors:
Schwartz, George L.
Publication Date:
08/20/1935
View Patent Images:
Export Citation:
Assignee:
Pont DU.
Primary Class:
Other Classes:
162/147, 264/DIG.075, 162/148, 162/146, 264/123
International Classes:
D21J1/00