Description: 355 / (27) Discharge Device Control Or Supply (38) Photosensitive (39) Thermionic conversion

Hierarchy/Derived subclasses

355 / 27

-> 38

-> 39

CIPO search

search just 355/39

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.

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