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Priority claimed from US06/660,190external-prioritypatent/US4737192A/en
Priority claimed from US06/660,206external-prioritypatent/US4547403A/en
Application filed by Manville CorpfiledCriticalManville Corp
Priority claimed from EP84112530Aexternal-prioritypatent/EP0142715B1/en
Application grantedgrantedCritical
Publication of ATE41700T1publicationCriticalpatent/ATE41700T1/en