BR6908518D0 - SMOKE FILTERS - Google Patents

SMOKE FILTERS

Info

Publication number
BR6908518D0
BR6908518D0 BR20851869A BR20851869A BR6908518D0 BR 6908518 D0 BR6908518 D0 BR 6908518D0 BR 20851869 A BR20851869 A BR 20851869A BR 20851869 A BR20851869 A BR 20851869A BR 6908518 D0 BR6908518 D0 BR 6908518D0
Authority
BR
Brazil
Prior art keywords
smoke filters
smoke
filters
Prior art date
Application number
BR20851869A
Other languages
Portuguese (pt)
Inventor
H Horsewell
T Charles
Original Assignee
British American Tobacco Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British American Tobacco Co filed Critical British American Tobacco Co
Publication of BR6908518D0 publication Critical patent/BR6908518D0/en

Links

BR20851869A 1968-05-03 1969-05-02 SMOKE FILTERS BR6908518D0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2112868A GB1255657A (en) 1968-05-03 1968-05-03 Improvements relating to tobacco-smoke filters

Publications (1)

Publication Number Publication Date
BR6908518D0 true BR6908518D0 (en) 1973-01-30

Family

ID=10157672

Family Applications (1)

Application Number Title Priority Date Filing Date
BR20851869A BR6908518D0 (en) 1968-05-03 1969-05-02 SMOKE FILTERS

Country Status (4)

Country Link
BR (1) BR6908518D0 (en)
CH (1) CH495712A (en)
DE (1) DE1922393C3 (en)
GB (1) GB1255657A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896683A (en) * 1988-10-17 1990-01-30 Hercules Incorporated Selective delivery and retention of nicotine by-product from cigarette smoke
JP4224460B2 (en) 2002-09-19 2009-02-12 日本たばこ産業株式会社 Tobacco filter
US20060086367A1 (en) 2004-10-25 2006-04-27 Philip Morris Usa Inc. Additives for tobacco cut filler
GB0922253D0 (en) 2009-12-21 2010-02-03 British American Tobacco Co Sheet filter materials with additives

Also Published As

Publication number Publication date
GB1255657A (en) 1971-12-01
DE1922393B2 (en) 1979-10-11
DE1922393C3 (en) 1980-06-19
DE1922393A1 (en) 1969-11-20
CH495712A (en) 1970-09-15

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