Description: 342 / (1) Initiated By A Specific Means (12) Condition Actuated (17) Presence (Including Absence) (17.1) Plumbing Fixture
Hierarchy/Derived subclasses
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search just 342/17.1This 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.