Title:
Paper machinery
United States Patent 2102170

Inventors:
Isaac, Stern
Publication Date:
12/14/1937
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Assignee:
Isaac, Stern
Primary Class:
493/365
Other Classes:
493/354, 493/372, 493/342, 83/917, 493/60, 83/607, 83/550
International Classes:
B31B1/22; B31B1/14