Needles

Introduced: September 1968

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 > Constructions or forms, e.g. attachment of point to shank > Needles

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 > Constructions or forms , e.g. attachment of point to shank > Needles

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