USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(40) speed controlled (42) rotating weight positioned on or within inner rotating member

Hierarchy/Derived subclasses

418 / 40

-> 42

uspto searches

Patent Apps in 418/42

Granted Patents in 418/42

Use the links above or do an advanced search in ppubs for:
(418/42.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.

Display:

Back