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Individual
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Individual
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Priority to ES63844ApriorityCriticalpatent/ES63844A1/en
Publication of ES63844A1publicationCriticalpatent/ES63844A1/en
ES63844A1917-02-031917-02-03
An industrial result consisting of an artificial stone manufacturing procedure that will be called the "Cardona System".
ExpiredES63844A1
(en)