Canadian Subclass Details

Description: 129 / (35) File Holders (51) Overlapping Cards (52) Card Retainers (53) Modified Card

Hierarchy/Derived subclasses

129 / 35

-> 51

-> 52

-> 53

CIPO search

search just 129/53

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.