Description: 342 / (1) Initiated By A Specific Means (12) Condition Actuated (17) Presence (Including Absence)

Hierarchy/Derived subclasses

342 / 1	-> 12	-> 17	-> 17.1
			-> 17.2	-> 17.3
			-> 17.4
			-> 18

CIPO searches

search just 342/17

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((342/17 <IN> CPC) <OR> (342/17.1 <IN> CPC) <OR> (342/17.2 <IN> CPC) <OR> (342/17.3 <IN> CPC) <OR> (342/17.4 <IN> CPC) <OR> (342/18 <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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