USPC Class Details

Description: D4 brushware / d4 brushware/(137) with pad-like buffing or brushing surface

Hierarchy/Derived subclasses

D4 / 137

uspto searches

Patent Apps in D4/137

Granted Patents in D4/137

Use the links above or do an advanced search in ppubs for:
(D4/137.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.