USPC Class Details

Description: 175 boring or penetrating the earth / 175 boring or penetrating the earth/(56) natural vibration characteristic of an element of boring means related (1) to natural vibration characteristic of another element, or (2) to frequency of an imposed motion

Hierarchy/Derived subclasses

175 / 56-> 1-> 2

uspto searches

Patent Apps in 175/56

Granted Patents in 175/56

Use the links above or do an advanced search in ppubs for:
(175/56.ccls. or 175/1.ccls. or 175/2.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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