USPC Class Details

Description: 91 motors: expansible chamber type / 91 motors: expansible chamber type/(170r) relatively movable working members with one having motive fluid controlled by, movably interconnected with or moved by another (183) with means interconnecting working members to cause relative motion (185) motive fluid control by pitman swing or intermittent contact with working member

Hierarchy/Derived subclasses

91 / 170r

-> 183

-> 185

uspto searches

Patent Apps in 91/185

Granted Patents in 91/185

Use the links above or do an advanced search in ppubs for:
(91/185.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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