Air guide for tape copying apparatus
Apparatus and method for anhysteretically recording from master
Apparatus and method for anhysteretically recording from master
Apparatus for anhysteretic duplication of a flexible magnetic di
Apparatus for removing air from between a master magnetic medium
Apparatus for reproducing high fidelity magnetic tapes from a ma
Apparatus for storing and feeding endless tape and recorded tape
Automatic magnetic record sheet copying apparatus
Combined high-speed contact magnetic tape duplicator and...
Contact duplication of magnetically recorded information without
Contact duplication system using anisotropic magnetic recording
Contact magnetic printing of magnetic media using actuated...
Contact magnetic transfer of servo pattern to rigid...
Contact printing apparatus with presettable means indicating num
Contact printing of magnetic media with mechanically...
Copying apparatus for copying a magnetic pattern from a master m
Device and method for contact patterning of dual-sided...
Device for reproducing the recorded content of a magnetic card
Digital displacement transducer and method for measurement
Electromagnetic drive circuitry for anhysteretic duplication of