197573 ⎘
Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor; Arrangements of heads; Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
Sub-classes:Apparatus for varying the pitch of audible tones driven by a turntable
#2Vinyl record player automatic stop and lift tonearm structure
#3Control system for fully automatic turntable
#4Light monitoring circuit for a manual to automatic turntable conversion
#5Manual to automatic turntable player conversion