Description: 270 / (173) Stack Tables, Magazines And Catch Or Feedtrays (176) Vertically Moveable (177) With Automatic Control (180) Stack-Top Feeler Controlled
Hierarchy/Derived subclasses
CIPO searches
search just 270/180- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((270/180 <IN> CPC) <OR> (270/181 <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.