US PATENT SUBCLASS 347 / 122
.~.~.~.~ Including latent image generation using luminescent material

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

111  DF  ELECTRIC MARKING APPARATUS OR PROCESSES {3}
112  DF  .~ Electrostatic {8}
120  DF  .~.~ By information carrying flow of invisible charged particles {3}
121  DF  .~.~.~ Electron beam generator with air tight envelope {1}
122.~.~.~.~ Including latent image generation using luminescent material

DEFINITION

Classification: 347/122

Including latent image generation using luminescent material:

(under subclass 121) Subject matter comprising means for converting the electrons to photons wherein the photons produce the latent image by charging, or discharging, the medium.