Tobacco users' appliance > Device used for smoking > Smoke treating > Material separator and trap > Filter and/or absorber > Patents - Class: 131/202

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Class Information
Number: 131/202
Name: Tobacco > Tobacco users' appliance > Device used for smoking > Smoke treating > Material separator and trap > Filter and/or absorber
Description: Smoking devices provided with a filter or an absorber, or both.

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