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Priority claimed from US05/806,291external-prioritypatent/US4210121A/en
Priority claimed from US05/845,862external-prioritypatent/US4194949A/en
Application filed by Uirgil StarkfiledCriticalUirgil Stark
Application grantedgrantedCritical
Publication of AR230104A1publicationCriticalpatent/AR230104A1/es