Canadian Subclass Details

Description: 154 / (41) Processes (53) Tubes and Cylindrical Structures (53.17) Longitudinal Seam (53.2) With Heating

Hierarchy/Derived subclasses

154 / 41

-> 53

-> 53.17

-> 53.2

CIPO search

search just 154/53.2

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.

Display:

Back