Hierarchy/Derived subclasses
312 / 62 | -> 79 | -> 80 |
CIPO search
search just 312/80This 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
312 / 62 | -> 79 | -> 80 |