It has now been 50 years!

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With the invention of electromechanical engraving, Rudolf Hell certainly took the biggest step forward for gravure printing in the twentieth century. Until then, gravure cylinders had been etched. The associated sequence of difficult procedural steps required much manual craftsmanship and involved countless incalculabilities. Electromechanical engraving now transformed images into electrical impulses in one operation, and these in turn into the mechanical movements of a diamond stylus. That was revolutionary, and gravure printing became an industrial process with unvarying results. ...cont´d

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