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US20090288672 Cigarette Filter Comprising a Carbonaceous Fiber  
The invention provides a cigarette filter including at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiber structure including a carrier...
US20080230076 Cigarette Filters  
The present invention provides a smoke filter material, a filter and cigarettes with the filter, as well as methods for their manufacture. The filter material substantially is of an organic...
Matches 1 - 2 out of 2