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PIERRE-HENRI-GASTON DURVILLE
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PIERRE-HENRI-GASTON DURVILLE
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Application filed by PIERRE-HENRI-GASTON DURVILLEfiledCriticalPIERRE-HENRI-GASTON DURVILLE
Application grantedgrantedCritical
Publication of FR452687ApublicationCriticalpatent/FR452687A/fr