Description: 126 / (93) Open Combustion Chamber (94) Fireplace Type (98) Combustion Air And Flue Gas Circulation
Hierarchy/Derived subclasses
CIPO searches
search just 126/98- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((126/98 <IN> CPC) <OR> (126/99 <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.