Description: 153 / (1) Special Application (15) Tube and Pipe Bending (16) Flangers and Expanders (17) Explosively Actuated

Hierarchy/Derived subclasses

153 / 1-> 15-> 16-> 17

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search just 153/17

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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