Rate adaptive writer for a card having a magnetizable surface

Read and erase device

Read-write apparatus for use in a conveyor control

Record member for magnetic and optical recording

Recorder/player device with stationary recording medium and cons

Recording medium detecting apparatus for distinguishing...

Recording reproducer for magnetic cards

Self-clocking write head

Single message recorder and playback apparatus

Spring driven velocity controlled magnetic stripe reader

Still image slide combination with sequentially activated audio

Still image slide with sound track control

Support structure of a magnetic head and magnetic card reader

System and method for interfacing data stored on a magnetic...

Ticket information recording and web parting mechanism

Timing wheel for card encoder

Velocity controlled manual movement credit card reader

Web guiding device for use in a magnetic reading and/or recordin