Plate member for attaching/detaching disk from disk chuck

Playback apparatus for a storage disc

Playback instrument for an information carrier disc

Playback system for recording disk having flexible, deformable r

Polycarbonate turntable for a compact disk player

Positive and negative rotation gas dynamic pressure bearing,...

Process for stopping a rotating disc-shaped record medium

Protective cartridge for disc record

Record

Record card transducing apparatus and method

Record centering and decoupling devices for turntables

Record disc, turntable and method for fixing same

Record disk drive

Record optimizer system and method of utilization

Record player

Record player speed changing mechanism

Record player with turntable brake and balance wheels

Record player with vibration cancellation mechanism

Record players

Record removal and centering device for 45 r.p.m. device