Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G11B 3/56

Sharpening (grinding B24B3/00, B24B19/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Sharpening

CPC: Sharpening (grinding B24B3/00, B24B19/00)

Full Title

Full titles differ between systems:

IPC:

Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor > Styli, e.g. sapphire, diamond > Sharpening

CPC:

Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor (G11B11/00, take precedence) > Styli, e.g. sapphire, diamond > Sharpening (grinding B24B3/00, B24B19/00)

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