FIELD: tobacco industry. SUBSTANCE: filtering rod is made of two halves 1 and 2, which are put into envelope 3. Strip 4 of filter tip air-proof paper connects the filter with tobacco rod 5. Ventilation holes 6 are disposed onto strip 4, which holes are arranged along the circle relatively cigarette axis at the joint of two halves. So, one part of the filter may be broken off. EFFECT: improved convenience. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CIGARETTE FILTER | 0 |
|
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| CIGARETTE FILTER | 2013 |
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