Description: 342 / (20) With Signal Or Energy Processing (23) For Motive Power (29) For Electric Drive (42) Cutting

Hierarchy/Derived subclasses

342 / 20	-> 23	-> 29	-> 42	-> 42.1
				-> 42.2
				-> 42.3

CIPO searches

search just 342/42

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((342/42 <IN> CPC) <OR> (342/42.1 <IN> CPC) <OR> (342/42.2 <IN> CPC) <OR> (342/42.3 <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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