Canadian Subclass Details

Description: 70 / (12) Special Application (25) For Closures (26) Strong Rooms or Safes (27) Combination Controlled

Hierarchy/Derived subclasses

70 / 12-> 25-> 26-> 27

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search just 70/27

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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