Description: 122 / (36) Boilers And Water Heaters (67) Fire Tube Boilers (68) Horizontal Tubes (74) Adjacent Furnace (75) Locomotive Type (76) Fire Boxes

Hierarchy/Derived subclasses

122 / 36	-> 67	-> 68	-> 74	-> 75	-> 76	-> 77
						-> 78

CIPO searches

search just 122/76

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((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.

Display:

Back