Title:
Art of making dust guards and/or packing
United States Patent 2151410
Inventors:
Richter, Herman W.
Publication Date:
03/21/1939
Assignee:
GEORGE O JENKINS COMPANY
Other Classes:
264/321, 264/136, 411/542, 277/931, 277/500
International Classes:
B61F15/22; B61F15/00