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United States Patent 1868269
Inventors:
Beadle, Eugene E.
Publication Date:
07/19/1932
View Patent Images:
Download PDF 1868269
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Assignee:
Beadle, Eugene E.
Primary Class:
248/94
Other Classes:
248/101, 43/24
International Classes:
B01D29/27
;
B01D29/13