USPC Class Details

Description: 131 tobacco / 131 tobacco/(280) cigar or cigarette making (27.1) including cooperating surfaces to induce rolling (56) roller type

Hierarchy/Derived subclasses

131 / 280-> 27.1-> 56

uspto searches

Patent Apps in 131/56

Granted Patents in 131/56

Use the links above or do an advanced search in ppubs for:
(131/56.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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