USPC Class Details

Description: 361 electricity: electrical systems and devices / 361 electricity: electrical systems and devices/(1) safety and protection of systems and devices (117) high voltage dissipation (e.g., lightning arrester) (137) horn gap

Hierarchy/Derived subclasses

361 / 1

-> 117

-> 137

-> 138

uspto searches

Patent Apps in 361/137

Granted Patents in 361/137

Use the links above or do an advanced search in ppubs for:
(361/137.ccls. or 361/138.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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