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Title:
Separating or classifying machine
United States Patent 1647816
Inventors:
Riddell, William A.
Publication Date:
11/01/1927
View Patent Images:
Download PDF 1647816
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Assignee:
Riddell, William A.
Primary Class:
209/668
Other Classes:
209/673
International Classes:
B07B1/14
;
B07B1/12