USPC Class Details

Description: 418 rotary expansible chamber devices / 418 rotary expansible chamber devices/(33) intermittently accelerated and receding members rotate in same path (alternating piston type) (35) each a working member

Hierarchy/Derived subclasses

418 / 33-> 35-> 36
  -> 37
  -> 38

uspto searches

Patent Apps in 418/35

Granted Patents in 418/35

Use the links above or do an advanced search in ppubs for:
(418/35.ccls. or 418/36.ccls. or 418/37.ccls. or 418/38.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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