Hierarchy/Derived subclasses
28 / 29 | -> 31 | -> 49 |
CIPO search
search just 28/49This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.
Intellectual Property from a Historical Perspective
28 / 29 | -> 31 | -> 49 |