Description: 126 / (15) Enclosed Combustion Chamber (87) Flue Pipes

Hierarchy/Derived subclasses

126 / 15	-> 87	-> 88
		-> 89
		-> 90
		-> 91

CIPO searches

search just 126/87

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((126/87 <IN> CPC) <OR> (126/88 <IN> CPC) <OR> (126/89 <IN> CPC) <OR> (126/90 <IN> CPC) <OR> (126/91 <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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