Description: 122 / (36) Boilers And Water Heaters (47) Water Tube Boilers (48) Steam Drum Type (49) Bent Tube (50) Single Drum

Hierarchy/Derived subclasses

122 / 36	-> 47	-> 48	-> 49	-> 50	-> 51
					-> 52
					-> 53

CIPO searches

search just 122/50

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((122/50 <IN> CPC) <OR> (122/51 <IN> CPC) <OR> (122/52 <IN> CPC) <OR> (122/53 <IN> CPC))

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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