Description: 164 / (18) Cutting Methods (25) Cylindrical Bodies
Hierarchy/Derived subclasses
CIPO searches
search just 164/25- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((164/25 <IN> CPC) <OR> (164/26 <IN> CPC))
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.