ZA722558B - Improvements relating to tobacco-smoke filters - Google Patents
Improvements relating to tobacco-smoke filtersInfo
- Publication number
- ZA722558B ZA722558B ZA722558A ZA722558A ZA722558B ZA 722558 B ZA722558 B ZA 722558B ZA 722558 A ZA722558 A ZA 722558A ZA 722558 A ZA722558 A ZA 722558A ZA 722558 B ZA722558 B ZA 722558B
- Authority
- ZA
- South Africa
- Prior art keywords
- tobacco
- improvements relating
- smoke filters
- smoke
- filters
- Prior art date
Links
- 239000000779 smoke Substances 0.000 title 1
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
- A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1657271 | 1971-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA722558B true ZA722558B (en) | 1973-01-31 |
Family
ID=10079734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA722558A ZA722558B (en) | 1971-05-24 | 1972-04-17 | Improvements relating to tobacco-smoke filters |
Country Status (10)
| Country | Link |
|---|---|
| AU (1) | AU456329B2 (enExample) |
| BE (1) | BE783179A (enExample) |
| CA (1) | CA951611A (enExample) |
| CH (1) | CH546545A (enExample) |
| DE (1) | DE2222289C3 (enExample) |
| DK (1) | DK128804B (enExample) |
| FI (1) | FI51895C (enExample) |
| GB (1) | GB1323947A (enExample) |
| NL (1) | NL171013C (enExample) |
| ZA (1) | ZA722558B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4343319A (en) * | 1980-11-28 | 1982-08-10 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| US4342322A (en) * | 1980-12-22 | 1982-08-03 | Brown & Williamson Tobacco Corporation | Cigarette filter |
-
1971
- 1971-05-24 GB GB1657271A patent/GB1323947A/en not_active Expired
-
1972
- 1972-04-17 ZA ZA722558A patent/ZA722558B/xx unknown
- 1972-04-18 CA CA140,062,A patent/CA951611A/en not_active Expired
- 1972-04-20 AU AU41416/72A patent/AU456329B2/en not_active Expired
- 1972-05-06 DE DE2222289A patent/DE2222289C3/de not_active Expired
- 1972-05-08 BE BE783179A patent/BE783179A/xx not_active IP Right Cessation
- 1972-05-10 FI FI721342A patent/FI51895C/fi active
- 1972-05-16 CH CH726272A patent/CH546545A/fr not_active IP Right Cessation
- 1972-05-19 DK DK251172AA patent/DK128804B/da unknown
- 1972-05-23 NL NLAANVRAGE7206903,A patent/NL171013C/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2222289B2 (de) | 1978-02-23 |
| NL171013B (nl) | 1982-09-01 |
| AU456329B2 (en) | 1974-12-12 |
| AU4141672A (en) | 1973-10-25 |
| DE2222289C3 (de) | 1978-10-26 |
| CA951611A (en) | 1974-07-23 |
| DE2222289A1 (de) | 1972-12-07 |
| BE783179A (fr) | 1972-09-01 |
| FI51895B (enExample) | 1977-01-31 |
| NL7206903A (enExample) | 1972-11-28 |
| NL171013C (nl) | 1983-02-01 |
| CH546545A (fr) | 1974-03-15 |
| FI51895C (fi) | 1977-05-10 |
| DK128804B (da) | 1974-07-08 |
| GB1323947A (en) | 1973-07-18 |
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 | |
| ZA723840B (en) | Improvements relating to phenylimidazolidinones | |
| ZA708163B (en) | Improvements relating to tobacco-smoke filters | |
| ZA716273B (en) | Improvements relating to tobacco-smoke filters | |
| 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 | |
| ZA722161B (en) | Improvements relating to 4-hydroxy-1-phenyl-2-pyrrolidino-pentane | |
| MY7800301A (en) | Improvements relating to tobacco-smoke filters | |
| ZA731150B (en) | Improvements relating to tobacco-smoke filters | |
| CA865467A (en) | Tobacco-smoke filters |