DIFF Subgroup
B21K 5/06 Dressing, e.g. sharpening rock drills
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making tools or tool parts, e.g. pliers > drilling-tools or other tools for making or working on holes > Dressing, e.g. sharpening rock drills
CPC:
Making tools or tool parts, e.g. pliers > drilling-tools or other for making or working on holes > Dressing, e.g. sharpening rock drills
No child classifications to compare. This is a leaf node in both IPC and CPC.