Hierarchy/Derived subclasses
| 313 / 83 | -> 84 |
CIPO search
search just 313/84This 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: 313 / (83) With Optical Device Or Special Ray Transmissive Window (84) Polarizer or Special Ray Transmission (e.g., Filter)
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.