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Priority claimed from US06/503,907external-prioritypatent/US4527741A/en
Priority claimed from US06/597,838external-prioritypatent/US4527594A/en
Application filed by Afa Products IncfiledCriticalAfa Products Inc
Application grantedgrantedCritical
Publication of ATE41395T1publicationCriticalpatent/ATE41395T1/de