Description: 302 / (4) With Fan Blowers (8) Mechanical Feed (9) Conveyor

Hierarchy/Derived subclasses

302 / 4	-> 8	-> 9	-> 10	-> 11
			-> 12

CIPO searches

search just 302/9

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((302/9 <IN> CPC) <OR> (302/10 <IN> CPC) <OR> (302/11 <IN> CPC) <OR> (302/12 <IN> CPC))

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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