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Individual
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Individual
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Priority to ES41475ApriorityCriticalpatent/ES41475A2/en
Publication of ES41475A2publicationCriticalpatent/ES41475A2/en
ES41475A1907-08-261907-08-26
Modifications in the procedure to take advantage of the iron contained in the waters of some rivers.
ExpiredES41475A2
(en)