Description: 325 / (27) Transmitter And Receiver At Separate Stations (41) Plural Separate Transmitters or Receivers
Hierarchy/Derived subclasses
CIPO searches
search just 325/41- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((325/41 <IN> CPC) <OR> (325/42 <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.