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Title:
Cigarettes
United States Patent 2786471
US Patent References:
/0283489.html
- - 0283489
/0606537.html
- - 0606537
Treatment of vermiculite and the like
- - 1898774
Treatment of tobacco
- - 1972718
Method of and substance for treating tobacco smoke
- - 2108860
Inventors:
Wayne, Graybeal Kenneth
Publication Date:
03/26/1957
View Patent Images:
Download PDF 2786471
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Assignee:
Wayne, Graybeal Kenneth
Primary Class:
131/344
Other Classes:
55/486, 131/331, 131/200, 55/522, 33/23.040
International Classes:
A24D3/04
;
A24D3/16
;
A24D3/00
US Patent References:
2327991
Cigar and cigarette
2342574
Lightweight mineral material
2547119
Cigarette
Foreign References:
AT271919B
GB521607A