Description: 238 / (49) Rails (51) Vignoles (Standard Rail)

Hierarchy/Derived subclasses

238 / 49

-> 51

-> 52

-> 53

CIPO searches

search just 238/51

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((238/51 <IN> CPC) <OR> (238/52 <IN> CPC) <OR> (238/53 <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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