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PCE
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DIFF Subgroup
B23H 9/08

Sharpening

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects > Sharpening

CPC:

Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (heat treatment by cathodic discharge C21D1/38) > Sharpening

No child classifications to compare. This is a leaf node in both IPC and CPC.