Hierarchy/Derived subclasses
| 92 / 34 | -> 41 | -> 42 |
CIPO search
search just 92/42This 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.
Canadian Subclass Details
Description: 92 / (34) Stuff Working (41) Refining Engines (42) Cone and Shell
This 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.
This 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.