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Application filed by Rothmans of Pall Mall Canada LtdfiledCriticalRothmans of Pall Mall Canada Ltd
Priority to CA155,580,ApriorityCriticalpatent/CA951797A/en
Priority to DE19732354587prioritypatent/DE2354587A1/en
Application grantedgrantedCritical
Publication of CA951797ApublicationCriticalpatent/CA951797A/en