Description: 238 / (49) Rails (51) Vignoles (Standard Rail) (52) Multiple Section (53) Split Tread

Hierarchy/Derived subclasses

238 / 49

-> 51

-> 52

-> 53

CIPO search

search just 238/53

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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