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REMI-LOUIS MASSON
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REMI-LOUIS MASSON
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Application filed by REMI-LOUIS MASSONfiledCriticalREMI-LOUIS MASSON
Application grantedgrantedCritical
Publication of FR441749ApublicationCriticalpatent/FR441749A/en
Apparatus for the automatic and continuous iridescence of the surfaces and in particular of the surface of the glass bubbles used in the manufacture of pearls