Title:
Covering for filter cartridge
United States Patent 3356227


Inventors:
Rule, Richard A.
Rule, Julius E.
Application Number:
US48810365A
Publication Date:
12/05/1967
Filing Date:
09/17/1965
Assignee:
Rule, Richard A.
Rule, Julius E.
Primary Class:
Other Classes:
210/494.1
International Classes:
B01D29/01; B01D35/00
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