BE433802A - - Google Patents
Info
- Publication number
- BE433802A BE433802A BE433802DA BE433802A BE 433802 A BE433802 A BE 433802A BE 433802D A BE433802D A BE 433802DA BE 433802 A BE433802 A BE 433802A
- Authority
- BE
- Belgium
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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
- A24D3/166—Silicic acid or silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE853189X | 1938-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE433802A true BE433802A (nl) |
Family
ID=6787162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE433802D BE433802A (nl) | 1938-04-19 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE433802A (nl) |
| FR (1) | FR853189A (nl) |
-
0
- BE BE433802D patent/BE433802A/xx unknown
-
1939
- 1939-04-17 FR FR853189D patent/FR853189A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR853189A (fr) | 1940-03-12 |