Styli, e.g. sapphire, diamond

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

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

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

G11B 3/445 CPC only CPC only
G11B 3/46 Constructions or forms , e.g. attachment of point to shank IPC+CPC Available in IPC and CPC
G11B 3/50 Anvils or other supports opposing stylus forces IPC+CPC Available in IPC and CPC
G11B 3/52 Arrangements permitting styli to yield under excessive pressure IPC+CPC Available in IPC and CPC
G11B 3/54 Storing; Manipulating, e.g. feeding styli to and from heads IPC+CPC Available in IPC and CPC
G11B 3/56 Sharpening (grinding B24B3/00, B24B19/00) IPC+CPC Available in IPC and CPC