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Brou Jeanne
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Brou Jeanne
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Application filed by Brou JeannefiledCriticalBrou Jeanne
Priority to ES69974ApriorityCriticalpatent/ES69974A1/es
Publication of ES69974A1publicationCriticalpatent/ES69974A1/es
ES69974A1919-06-041919-06-04Un procedimiento de aglomeración de polvos de carbón mediante un cemento constituido por margas volcánicas.
ExpiredES69974A1
(es)