Hierarchy/Derived subclasses
| 346 / 33r | -> 33d |
uspto searches
Patent Apps in 346/33dGranted Patents in 346/33d
Use the links above or do an advanced search in ppubs for:
(346/33d.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.