BR6914913D0 - Aperfeicoamentos relativos a filtros para fumaca de tabac - Google Patents

Aperfeicoamentos relativos a filtros para fumaca de tabac

Info

Publication number
BR6914913D0
BR6914913D0 BR21491369A BR21491369A BR6914913D0 BR 6914913 D0 BR6914913 D0 BR 6914913D0 BR 21491369 A BR21491369 A BR 21491369A BR 21491369 A BR21491369 A BR 21491369A BR 6914913 D0 BR6914913 D0 BR 6914913D0
Authority
BR
Brazil
Prior art keywords
tobacco smoke
smoke filters
improvements concerning
concerning tobacco
filters
Prior art date
Application number
BR21491369A
Other languages
English (en)
Portuguese (pt)
Inventor
T Tolman
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 BR6914913D0 publication Critical patent/BR6914913D0/pt

Links

BR21491369A 1968-12-11 1969-12-09 Aperfeicoamentos relativos a filtros para fumaca de tabac BR6914913D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5883168A GB1235880A (en) 1968-12-11 1968-12-11 Improvements relating to tobacco-smoke filters

Publications (1)

Publication Number Publication Date
BR6914913D0 true BR6914913D0 (pt) 1973-05-31

Family

ID=10482508

Family Applications (1)

Application Number Title Priority Date Filing Date
BR21491369A BR6914913D0 (pt) 1968-12-11 1969-12-09 Aperfeicoamentos relativos a filtros para fumaca de tabac

Country Status (8)

Country Link
BE (1) BE742722A (da)
BR (1) BR6914913D0 (da)
CH (1) CH511572A (da)
DE (1) DE1960040C3 (da)
DK (1) DK128224B (da)
FI (1) FI51757C (da)
GB (1) GB1235880A (da)
NL (1) NL135250C (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202356A (en) * 1976-07-08 1980-05-13 University Of Kentucky Research Foundation Tobacco smoke filter material
US4163452A (en) * 1977-12-01 1979-08-07 British-American Tobacco Company Limited Tobacco-smoke filters
FI67478C (fi) * 1979-11-13 1985-04-10 British American Tobacco Co Filter foer tobaksroek
JP4262279B2 (ja) * 2004-07-27 2009-05-13 日本たばこ産業株式会社 シガレット用フィルタおよびそれを備えたシガレット
WO2010100930A1 (ja) 2009-03-06 2010-09-10 日本電気株式会社 光電変換素子およびその製造方法、光センサならびに太陽電池
EP2405529A4 (en) * 2009-03-06 2013-01-16 Nec Corp ELEMENT FOR PHOTOELECTRIC CONVERSION, PROCESS FOR ITS MANUFACTURE, OPTICAL SENSOR AND SOLAR CELL

Also Published As

Publication number Publication date
GB1235880A (en) 1971-06-16
CH511572A (de) 1971-08-31
FI51757B (da) 1976-12-31
BE742722A (da) 1970-05-14
NL6918271A (da) 1970-06-15
FI51757C (fi) 1977-04-12
DE1960040C3 (de) 1974-11-14
DK128224B (da) 1974-03-25
DE1960040A1 (de) 1970-10-15
NL135250C (da) 1972-05-15
DE1960040B2 (de) 1973-07-19

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