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Gni I P
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Gni I P
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Priority to ES387557ApriorityCriticalpatent/ES387557A1/es
Publication of ES387557A1publicationCriticalpatent/ES387557A1/es
ES387557A1971-01-231971-01-23Un aparato para preparar mezclas celulares, basadas en aglu-tinantes minerales y agentes formadores de gas.
ExpiredES387557A1
(es)