USPC Class Details

Description: 84 music / 84 music/(1) instruments () automatic (7) stringed (13) pianos (16) constant power (17) electric control (18) key actuators

Hierarchy/Derived subclasses

84 / 1-> 7-> 13-> 16-> 17-> 18

uspto searches

Patent Apps in 84/18

Granted Patents in 84/18

Use the links above or do an advanced search in ppubs for:
(84/18.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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