Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/223,232external-prioritypatent/US5076296A/en
Application filed by Philip Morris ProdfiledCriticalPhilip Morris Prod
Priority to FI915519ApriorityCriticalpatent/FI915519A7/en
Publication of FI915519A0publicationCriticalpatent/FI915519A0/en
Publication of FI915519A7publicationCriticalpatent/FI915519A7/en