Description: 84 / (2) String Instruments (3) Struck (Pianos, Dulcimers and Clavichord) (22) Hammer Action

Hierarchy/Derived subclasses

84 / 2	-> 3	-> 22	-> 23
			-> 24
			-> 25

CIPO searches

search just 84/22

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((84/22 <IN> CPC) <OR> (84/23 <IN> CPC) <OR> (84/24 <IN> CPC) <OR> (84/25 <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.

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