Description: 238 / (18) Ties (27) Recessed Top Surface (30) Rail Joint

Hierarchy/Derived subclasses

238 / 18

-> 27

-> 30

CIPO search

search just 238/30

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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