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Application filed by Lambert ServaisfiledCriticalLambert Servais
Priority to BE585833ApriorityCriticalpatent/BE585833R/en
Priority to FR819387Aprioritypatent/FR1249098A/en
Priority to GB673760Aprioritypatent/GB877548A/en
Application grantedgrantedCritical
Publication of BE585833RpublicationCriticalpatent/BE585833R/en