Patent class list (only not empty are listed)

Stone working

Subclass of: 125 - Stone working

Deeper subclasses:

125001000 - MISCELLANEOUS (1)
125002000 - DRESSING (2)
125010000 - TURNING (1)
125012000 - SAWING (33)
125230010 - SPLITTING, SHEARING, AND PUNCHING (5)
125026000 - BRICK CLEANING (1)
125036000 - TOOLS (2)

Patents in all subclasses Stone working