Patent classifications
A
HUMAN NECESSITIES
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A24
TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
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A24C
MACHINES FOR MAKING CIGARS OR CIGARETTES
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5/00
Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
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A24C5/46
Making paper tubes for cigarettes
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A24C5/465
the paper tubes partially containing a filter element
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