Device for recording and reproducing audio signals on flat recta
Device for storing electromagnetic control signals on magnetic s
Device for writing on a card-shaped data memory having sensors f
Document identification employing exchange-anisotropic magnetic
Dual particle population magnetic recording medium
Head protection device and a card reader having the head...
High-speed magnetic encoding apparatus and method
Information recording and updating method, information recording
Information recording and/or reproducing apparatus having a head
Information recording-reproducing apparatus
Information recording-reproducing apparatus
Information reproduction apparatus for a camera
Jitter-free gear arrangement for equipment requiring precision m
Logging cable magnetic remark apparatus
Magnetic card reader and magnetic data reproduction method,...
Magnetic card reader and magnetic data reproduction method...
Magnetic card reader and magnetic data reproduction method...
Magnetic card reader device
Magnetic card reader with head stop arrangement
Magnetic card recording apparatus