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Contrataciones E Ind
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Contrataciones E Ind
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Priority to ES106624ApriorityCriticalpatent/ES106624A2/en
Publication of ES106624A2publicationCriticalpatent/ES106624A2/en
ES106624A1928-02-281928-02-28
A procedure for the manufacture of concrete, replacing the stone currently used by slags from the smelting of lead ore.
ExpiredES106624A2
(en)