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EUGENE CHARLES GIRARDON
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EUGENE CHARLES GIRARDON
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Application filed by EUGENE CHARLES GIRARDONfiledCriticalEUGENE CHARLES GIRARDON
Application grantedgrantedCritical
Publication of FR513879ApublicationCriticalpatent/FR513879A/en
Improvements made to water purification means, in particular to products, known as descalers, for the purification of water intended for supplying boilers