Photogravure printing avoiding moire effects - using formula involving only whole numbers to determine size and angular position of grid mesh
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Precision transporting and holding installation for printer - accurately moves original or photosensitive material in both directions by drum for scanning under effect of vacuum
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Stroke position correction device for CRT reproduction system - using correction of X deflection to synchronise Y deflection frequency with stroke release frequency
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Forming half tone raster points - de-arranging regularity of arrangement between density values and partial raster spot forms to achieve desired irregularity
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Reducing phosphor fault effect for reproduction CRT - uses cyclically repeated group of illuminating strokes and pixels instead of single illuminating stroke
US4949281A
Method and apparatus for generating and producing two-dimensional graphic object by polynominal parametric curves
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Method and device for balancing (adjusting) a recording light source in a photographic composing machine
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Method and device for automatically calibrating an image scanner
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Mobile assembly and material carrier for a production line
DE3615128A1
Device for the unreactive coupling of a slide to its transport spindle
DE3615129A1
Spring-loaded lens tracking system
DE3615126A1
Method and device for adjusting a cathode ray tube in a photosetter (filmsetter)
DE3440529A1
Optical system for reproducing points of light
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METHOD FOR CODING AND DECODING CHARACTERS
DE3406576A1
Method and device for determining and scanning part-areas of an original to be scanned
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Device for feeding and electrostatically securing light-sensitive material
