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A previous treatment of aluminous minerals characterized by a calcination of the mineral at temperatures between 750ºc and 1200ºc. (Machine-translation by Google Translate, not legally binding)
ES210154A1953-07-031953-07-03A previous treatment of aluminum minerals (Machine-translation by Google Translate, not legally binding)
ExpiredES210154A1
(en)
Procedure for the obtaining of a N-trifluormethyl-N-thiofluordicloro-methane-2-methyl-5-nitroaniline of fungitoxic effect. (Machine-translation by Google Translate, not legally binding)