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Priority claimed from GB745632Aexternal-prioritypatent/GB395092A/en
Priority claimed from GB671235Aexternal-prioritypatent/GB450333A/en
Application filed by Ingenioer Ernest West, Frederick Joseph West, Wests Gas Improvement Co LtdfiledCriticalIngenioer Ernest West
Application grantedgrantedCritical
Publication of DK52847CpublicationCriticalpatent/DK52847C/da