Canadian Subclass Details

Description: 154 / (41) Processes (53) Tubes and Cylindrical Structures (53.01) Permeable

Hierarchy/Derived subclasses

154 / 41-> 53-> 53.01

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search just 154/53.01

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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