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Individual
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Individual
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Priority to ES7451ApriorityCriticalpatent/ES7451A1/en
Publication of ES7451A1publicationCriticalpatent/ES7451A1/en
Improvements in the process to manufacture cardboard, cardboard, pulp or straw cloth or other analogous substance or metals or other laminar substances.
A procedure for the defibration and cleaning of any vegetable matter applicable to the manufacture of paper, cardboard, threads, tow and other similar articles.