Data recording instrument having a moving recording head

Electric control system for magnetic sheet recording and reprodu

Hand-held transducing device

Head mounting arrangement in magnetic card reader

Information recording method and apparatus using plasmonic...

Information storage and reproduction apparatus and method employ

Magnetic card reader-encoder apparatus

Magnetic disk drive in which change in distance between magnetic

Magnetic sheet player with an adjustable inclined magnetic head

Magnetic sheet reader

Piezoelectric driven mass storage

Static media/spinning head storage device

Stationary magnetic tape transducing system with means for contr

System and method for cleaning a tape drive

System for magnetically recording and reproducing still video pi

Verification apparatus using a card scanning means

Vibration absorption system for a card reading mechanism