USPC Class Details

Description: 91 motors: expansible chamber type / 91 motors: expansible chamber type/(218) cyclically operable (281) working member controlled motive fluid for distributor motor (304) pilot valve controlled distributor motor (461) (312) distributor motor working member is valve seat for pilot valve

Hierarchy/Derived subclasses

91 / 218

-> 281

-> 304

-> 461

-> 312

uspto searches

Patent Apps in 91/312

Granted Patents in 91/312

Use the links above or do an advanced search in ppubs for:
(91/312.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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