USPC Class Details

Description: 172 earth working / 172 earth working/(133) diverse tools (195) second implement follows path of first (199) including drag, scraper or levelling blade

Hierarchy/Derived subclasses

172 / 133-> 195-> 199-> 200

uspto searches

Patent Apps in 172/199

Granted Patents in 172/199

Use the links above or do an advanced search in ppubs for:
(172/199.ccls. or 172/200.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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