USPC Class Details

Description: 60 power plants / 60 power plants/(272) internal combustion engine with treatment or handling of exhaust gas (273) methods

Hierarchy/Derived subclasses

60 / 272-> 273-> 274

uspto searches

Patent Apps in 60/273

Granted Patents in 60/273

Use the links above or do an advanced search in ppubs for:
(60/273.ccls. or 60/274.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.
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