Description: 122 / (36) Boilers And Water Heaters (40) Waste Heat Boilers (41) Black Liquor Burning

Hierarchy/Derived subclasses

122 / 36

-> 40

-> 41

CIPO search

search just 122/41

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.

Display:

Back