BR7807658ABR7807658ABR7807658ABR7807658ABR 7807658 ABR7807658 ABR 7807658ABR 7807658 ABR7807658 ABR 7807658ABR 7807658 ABR7807658 ABR 7807658ABR 7807658 ABR7807658 ABR 7807658A
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Priority claimed from US05/914,509external-prioritypatent/US4236459A/en
Application filed by Youngstown Steel Door CofiledCriticalYoungstown Steel Door Co
Publication of BR7807658ApublicationCriticalpatent/BR7807658A/pt