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Individual
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Individual
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Priority to ES65523ApriorityCriticalpatent/ES65523A2/en
Publication of ES65523A2publicationCriticalpatent/ES65523A2/en
ES65523A1917-10-041917-10-04
An industrial result consisting of an artificial stone manufacturing procedure that will be called the "Cardona System".
ExpiredES65523A2
(en)