Description: 84 / (38) Wind Instruments (39) Gas Reed (43) Single Chamber (Steam Whistles)

Hierarchy/Derived subclasses

84 / 38

-> 39

-> 43

-> 44

-> 45

CIPO searches

search just 84/43

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((84/43 <IN> CPC) <OR> (84/44 <IN> CPC) <OR> (84/45 <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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