Title:
Article of commerce
United States Patent 2854985

Inventors:
Watkins, William W.
Publication Date:
10/07/1958
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Assignee:
Pont DU.
Primary Class:
131/345
International Classes:
A24D3/10; A24D3/00
US Patent References:
2228383Tobacco smoke filtering
2520502Method of making synthetic brush bristles
2707308Method of making a filter element
2774680Process for making aerosol filters
Foreign References:
GB187200300A
DE41939C
AU121414B
GB145160A
CH276403A
GB451682A
GB665279A
GB694436A
DE845177C