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Priority claimed from US07/112,971external-prioritypatent/US4806360A/en
Priority claimed from US07/206,542external-prioritypatent/US4855144A/en
Application filed by Advanced Polymer Systems IncfiledCriticalAdvanced Polymer Systems Inc
Application grantedgrantedCritical
Publication of ATE99166T1publicationCriticalpatent/ATE99166T1/en