Description: 122 / (36) Boilers And Water Heaters (67) Fire Tube Boilers (68) Horizontal Tubes (74) Adjacent Furnace
Hierarchy/Derived subclasses
CIPO searches
search just 122/74- or -
search hierarchy!
The "search hierarchy!" link will execute this search:
((122/74 <IN> CPC) <OR> (122/75 <IN> CPC) <OR> (122/76 <IN> CPC) <OR> (122/77 <IN> CPC) <OR> (122/78 <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.