Description: 122 / (109) Fluid Treatment And Handling (110) Superheat and Reheat (111) Water Tube Boiler (113) Interbank (115) Straight Tube Boiler

Hierarchy/Derived subclasses

122 / 109

-> 110

-> 111

-> 113

-> 115

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search just 122/115

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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