USPC Class Details

Description: 175 boring or penetrating the earth / 175 boring or penetrating the earth/(263) cutter element laterally shiftable below ground (e.g., expansible) (274) with shifting mechanism spring biased to operative position (275) with separate latch

Hierarchy/Derived subclasses

175 / 263-> 274-> 275-> 276
   -> 277-> 278

uspto searches

Patent Apps in 175/275

Granted Patents in 175/275

Use the links above or do an advanced search in ppubs for:
(175/275.ccls. or 175/276.ccls. or 175/277.ccls. or 175/278.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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