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United States Patent 3490462
US Patent References:
Process for making harsh tobacco mild and the resultant product thereof
- - 2158565
Tobacco smoke filtering elements
- - 2904050
Tobacco smoke filter containing polyolefin cobweb additive
- - 3033212
Inventors:
Martin, Joseph F.
Publication Date:
01/20/1970
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Download PDF 3490462
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Assignee:
Joseph, Martin F.
MARMANAC INC
CHEMFILT CORP OF AMERICA
Primary Class:
131/352
Other Classes:
131/200
International Classes:
A24B15/32
;
A24B15/00
; A24B15/06
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