ZA725729B - Improvements relating to tobacco-smoke filters - Google Patents

Improvements relating to tobacco-smoke filters

Info

Publication number
ZA725729B
ZA725729B ZA725729A ZA725729A ZA725729B ZA 725729 B ZA725729 B ZA 725729B ZA 725729 A ZA725729 A ZA 725729A ZA 725729 A ZA725729 A ZA 725729A ZA 725729 B ZA725729 B ZA 725729B
Authority
ZA
South Africa
Prior art keywords
tobacco
improvements relating
smoke filters
smoke
filters
Prior art date
Application number
ZA725729A
Inventor
K Kilburn
R Richardson
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 ZA725729B publication Critical patent/ZA725729B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
ZA725729A 1971-09-06 1972-08-21 Improvements relating to tobacco-smoke filters ZA725729B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4150371A GB1371794A (en) 1971-09-06 1971-09-06 Tobacco-smoke filters

Publications (1)

Publication Number Publication Date
ZA725729B true ZA725729B (en) 1973-05-30

Family

ID=10419994

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA725729A ZA725729B (en) 1971-09-06 1972-08-21 Improvements relating to tobacco-smoke filters

Country Status (9)

Country Link
AU (1) AU4594172A (en)
BE (1) BE788366A (en)
BR (1) BR7206003D0 (en)
CA (1) CA971066A (en)
CH (1) CH561516A5 (en)
DE (1) DE2243349A1 (en)
GB (1) GB1371794A (en)
NL (1) NL7212021A (en)
ZA (1) ZA725729B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331166A (en) * 1980-05-02 1982-05-25 Philip Morris, Incorporated Cigarette
CH668533A5 (en) * 1985-08-26 1989-01-13 Baumgartner Papiers Sa CIGARETTE FILTER UNIT.
DE3624661A1 (en) * 1986-07-22 1988-02-04 Rhodia Ag VENTILATED CIGARETTE
DK499289A (en) * 1988-10-12 1990-04-13 Rothmans Int Tobacco CANDLE ELEMENTS FOR CIGARET FILTERS AND CIGARETTE EQUIPPED WITH SUCH CUSTOM ELEMENTS
GB8823902D0 (en) * 1988-10-12 1988-11-16 Rothmans Int Tobacco Cigarette filter rod elements & cigarettes incorporating such filter rod elements
CN102008124B (en) * 2010-12-07 2013-11-06 杨茂亮 Economical cigarette
JP2023544745A (en) * 2020-10-09 2023-10-25 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Aerosol-generating articles with ventilation

Also Published As

Publication number Publication date
BE788366A (en) 1973-01-02
CH561516A5 (en) 1975-05-15
CA971066A (en) 1975-07-15
DE2243349A1 (en) 1973-03-22
NL7212021A (en) 1973-03-08
BR7206003D0 (en) 1973-09-13
AU4594172A (en) 1974-02-28
GB1371794A (en) 1974-10-30

Similar Documents

Publication Publication Date Title
ZA723458B (en) Improvements relating to reconstituted-tobacco smoking materials
ZA727142B (en) Filter arrangement
ZA725740B (en) Improvements relating to smoking materials
ZA721212B (en) Improved filter cigarette
ZA723459B (en) Improvements relating to reconstituted-tobacco smoking materials
ZA735729B (en) Improvements relating to tobacco-smoke filters
ZA721453B (en) Improvements relating to the production of tobacco-smoke filters
ZA712317B (en) Improvements relating to tobaccosmoke filters
ZA722232B (en) Improvements relating to tobacco-smoke filters
ZA725729B (en) Improvements relating to tobacco-smoke filters
ZA721292B (en) Improvements relating to the production of tobacco-smoke filters
ZA715953B (en) Improvements relating to tobacco-smoke filters
ZA714381B (en) Improvements relating to tobacco-smoke filters
ZA708163B (en) Improvements relating to tobacco-smoke filters
ZA716273B (en) Improvements relating to tobacco-smoke filters
ZA723840B (en) Improvements relating to phenylimidazolidinones
ZA722558B (en) Improvements relating to tobacco-smoke filters
ZA727657B (en) Improvements in or relating to filters
YU35299B (en) Elektromechanical filter
ZA727838B (en) Improvements in or relating to filters
AU457139B2 (en) Improvements relating to tobacco-smoke filters
ZA731150B (en) Improvements relating to tobacco-smoke filters
MY7800301A (en) Improvements relating to tobacco-smoke filters
ZA722161B (en) Improvements relating to 4-hydroxy-1-phenyl-2-pyrrolidino-pentane
CA865467A (en) Tobacco-smoke filters