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MAX DUBERN
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MAX DUBERN
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Priority to ES353101ApriorityCriticalpatent/ES353101A1/es
Publication of ES353101A1publicationCriticalpatent/ES353101A1/es
ES353101A1968-04-241968-04-24Un procedimiento de construccion de cubiertas para hangaresde grandes dimensiones, sin necesidad de soportes metalicos.
ExpiredES353101A1
(es)