Description: 342 / (1) Initiated By A Specific Means (12) Condition Actuated (17) Presence (Including Absence) (18) Of Particular Quantity or Number

Hierarchy/Derived subclasses

342 / 1

-> 12

-> 17

-> 18

CIPO search

search just 342/18

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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