DIFF Subgroup Additional Only
Y10T 137/0463 Particular aperture forming means
Full Title
Fluid handling > Processes > Cleaning, repairing, or assembling > Repairing, securing, replacing, or servicing pipe joint, valve, or tank > Tapping pipe, keg, or tank > Particular aperture forming means
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.