358 / | HD | FACSIMILE AND STATIC PRESENTATION PROCESSING |
400 | DF | FACSIMILE {17} |
471 | DF | .~ Picture signal generator {3} |
474 | DF | .~.~ Scanning {15} |
494 | .~.~.~ Linear scanning pattern {3} | |
495 | DF | .~.~.~.~> Spiral or helix aperture with linear aperture |
496 | DF | .~.~.~.~> Document moves during scanning |
497 | DF | .~.~.~.~> Scanning element moves relative to a flat stationary document |