Description: 84 / (1.1) Electric Signals Translated To Sound (E.G., Music) (1.5) Selection and Control of Related Frequencies

Hierarchy/Derived subclasses

84 / 1.1	-> 1.5	-> 1.51
		-> 1.52
		-> 1.53

CIPO searches

search just 84/1.5

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((84/1.5 <IN> CPC) <OR> (84/1.51 <IN> CPC) <OR> (84/1.52 <IN> CPC) <OR> (84/1.53 <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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