Magnetic type printing process and multicopy magnetic printing m

Magnetizing apparatus for a magnetographic printer

Magnetographic apparatus

Magnetographic imaging member and the method of its use

Magnetographic printing apparatus

Method and an apparatus to record with plural gradation for magn

Method and apparatus for forming magnetic images by piezoelectri

Method and apparatus for forming magnetic latent images

Method and apparatus for recording latent images for magnetograp

Method and apparatus for recording latent images on a magnetic m

Method and device for erasing and writing on magnetic recording

Method for creating magnetic masters

Method for fabricating ferrolelectric domain reversals, and opti

Method for forming a latent image and apparatus for carrying out

Method for forming images by differential oxidation

Method for forming images using an electrolytic layer in redox r

Method for magnetographic printing, and magnetographic printing

Method for producing an image using persistent electrochromic ma

Method for transferring optically produced picture records to a

Method for writing and viewing magnetic human readable character