Paper-excelsior machine
United States Patent 1731967

Inventors:
Antonsen, Louie J.
Publication Date:
10/15/1929
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Assignee:
Antonsen, Louie J.
Primary Class:
225/3
Other Classes:
241/295, 241/236, 225/98, 493/967
International Classes:
D21B1/08; D21B1/00