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Individual
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Individual
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Priority to ES27652ApriorityCriticalpatent/ES27652A1/en
Publication of ES27652A1publicationCriticalpatent/ES27652A1/en
ES27652A1901-04-171901-04-17
A process for the production of metal plates in the form of photographic collotype and for use in a printing press.
ExpiredES27652A1
(en)