Automatic head retract system for disk drive

Automatic lock for head-carriage assembly in a disk file

Automatic music selecting device for tape recorder

Automatic reverse cassette type recorder

Automatic reverse tape recorder with head turn-over

Automatic scan tracking mechanism

Axial resonance attenuating apparatus for rotation drum apparatu

Azimuth adjusting device for magnetic head

Azimuth angle adjusting device for a tape player

Azimuth angle adjustment for a magnetic head

Azimuth regulating mechanism in floppy disc drive

Azimuthally adjustable means for attaching magnetic heads

Balance compensated rotary magnetic head device

Balanced actuator which accesses separate disc assemblies

Balanced cantilevered head positioning mechanism for multitrack

Balancing device of actuator in hard disk drive

Ball spindle for reduced friction rotary actuator in disk drive

Band drive actuator

Base plate for magnetic read suspension in hard disk drive with

Base plate suspension assembly in a hard disk drive with step in