USPC Class Details

Description: 91 motors: expansible chamber type / 91 motors: expansible chamber type/(196) moving cylinder (210) oscillating cylinder (211) cooperating valve ports in cylinder and fixed member (213) ported trunnion

Hierarchy/Derived subclasses

91 / 196-> 210-> 211-> 213

uspto searches

Patent Apps in 91/213

Granted Patents in 91/213

Use the links above or do an advanced search in ppubs for:
(91/213.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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