USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(71) pressure fluid radially balances working or rotating abutment member (72) with counterbalancing fluid passage through rotating member

Hierarchy/Derived subclasses

418 / 71

-> 72

uspto searches

Patent Apps in 418/72

Granted Patents in 418/72

Use the links above or do an advanced search in ppubs for:
(418/72.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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