Description: 84 / (2) String Instruments (3) Struck (Pianos, Dulcimers and Clavichord) (26) Keyboard and Keys
Hierarchy/Derived subclasses
CIPO searches
search just 84/26- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((84/26 <IN> CPC) <OR> (84/27 <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.