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Application filed by Ingenioer Arthur Robert Downs, Garrard Eng & Mfg Co LtdfiledCriticalIngenioer Arthur Robert Downs
Priority to DK8438ApriorityCriticalpatent/DK74316C/en
Application grantedgrantedCritical
Publication of DK74316CpublicationCriticalpatent/DK74316C/en