Canadian Subclass Details

Description: 313 / (111) Envelope With Gas Or Vapor (127) With Positive Ion or Electrode Shield

Hierarchy/Derived subclasses

313 / 111-> 127

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search just 313/127

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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