USPC Class Details

Description: 414 material or article handling / 414 material or article handling/(22.51) well pipe or rod racking mechanism (22.52) with slope change (22.54) horizontal to/from vertical (22.55) boom pivoting about horizontal axis (22.56) pivoting derrick

Hierarchy/Derived subclasses

414 / 22.51

-> 22.52

-> 22.54

-> 22.55

-> 22.56

uspto searches

Patent Apps in 414/22.56

Granted Patents in 414/22.56

Use the links above or do an advanced search in ppubs for:
(414/22.56.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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