Hierarchy/Derived subclasses
74 / 10r | -> 10a |
uspto searches
Patent Apps in 74/10aGranted Patents in 74/10a
Use the links above or do an advanced search in ppubs for:
(74/10a.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.