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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR526004ApublicationCriticalpatent/FR526004A/fr
FR526004D1919-12-101920-10-13Perfectionnements à l'épuration de l'étain et à la production de sels d'étain en partant d'étain impur
ExpiredFR526004A
(fr)