Description: 302 / (4) With Fan Blowers (8) Mechanical Feed (13) Through Fan

Hierarchy/Derived subclasses

302 / 4

-> 8

-> 13

CIPO search

search just 302/13

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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