USPC Class Details

Description: 266 metallurgical apparatus / 266 metallurgical apparatus/(271) means sealing or opening aperture in vessel (272) by means plugging aperture (273) by means injecting plugging compound, e.g., mud gun

Hierarchy/Derived subclasses

266 / 271

-> 272

-> 273

uspto searches

Patent Apps in 266/273

Granted Patents in 266/273

Use the links above or do an advanced search in ppubs for:
(266/273.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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