Description: 126 / (15) Enclosed Combustion Chamber (16) Jacketed (17) With Intermediate Heat Transfer Fluid (18) Distribution Type (e.g., Hot Air Furnace) (20) Forced Circulation (22) Heated Fluid Flow
Hierarchy/Derived subclasses
CIPO search
search just 126/22This 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.