Canadian Subclass Details

Description: 154 / (1) Apparatus (8) Tubes and Cylindrical Structures (8.06) Spiral Wind (8.07) Profiled Surface (8.08) Open Helix Reinforced

Hierarchy/Derived subclasses

154 / 1

-> 8

-> 8.06

-> 8.07

-> 8.08

CIPO search

search just 154/8.08

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.