Canadian Subclass Details

Description: 28 / (29) Strands (Process, Product, Apparatus) (31) Working, Finishing (38) Crimping (40) Edge Crimping

Hierarchy/Derived subclasses

28 / 29-> 31-> 38-> 40

CIPO search

search just 28/40

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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