Mazzucchelli: Hd Acetate Cannot Be Patented

The world's leading producer of cellulose acetate sheets for eyewear frames, Mazzucchelli, has published a statement pointing out that it has been using HD technology «that produces excellent chromatic/aesthetic effects and high-definition silk screen prints» since the 1970s, and that this technology «is based on highly developed and perfected know-how.» ...

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