347 / | HD | INCREMENTAL PRINTING OF SYMBOLIC INFORMATION |
1 | DF | INK JET {6} |
20 | DF | .~ Ejector mechanism (i.e., print head) {13} |
54 | DF | .~.~ Drop-on-demand {3} |
68 | .~.~.~ With piezoelectric force ejection {3} | |
69 | DF | .~.~.~.~> Shear mode |
70 | DF | .~.~.~.~> With vibratory plate |
71 | DF | .~.~.~.~> Layers, plates {1} |