USPC Class Details

Description: 137 fluid handling / 137 fluid handling/(38) control by change of position or inertia of system (45) by pendulum or swinging member (46) with servo connection to valve

Hierarchy/Derived subclasses

137 / 38

-> 45

-> 46

uspto searches

Patent Apps in 137/46

Granted Patents in 137/46

Use the links above or do an advanced search in ppubs for:
(137/46.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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