Description: 70 / (12) Special Application (15) For Control Mechanisms (22) Levers or Cranks

Hierarchy/Derived subclasses

70 / 12

-> 15

-> 22

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search just 70/22

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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