USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(16) with changeable working chamber magnitude (24) spring or fluid biased movable member (27) spring

Hierarchy/Derived subclasses

418 / 16

-> 24

-> 27

uspto searches

Patent Apps in 418/27

Granted Patents in 418/27

Use the links above or do an advanced search in ppubs for:
(418/27.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