CPC Subgroup
G11B 3/44 Styli, e.g. sapphire, diamond
Full Title
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
6 direct subcodes
Child Classifications
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- G11B 3/46 Constructions or forms , e.g. attachment of point to shank
- G11B 3/50 Anvils or other supports opposing stylus forces
- G11B 3/52 Arrangements permitting styli to yield under excessive pressure
- G11B 3/54 Storing; Manipulating, e.g. feeding styli to and from heads
- G11B 3/56 Sharpening (grinding B24B3/00, B24B19/00)