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Priority claimed from US07/090,811external-prioritypatent/US4836375A/en
Application filed by Manville CorpfiledCriticalManville Corp
Publication of NO891738D0publicationCriticalpatent/NO891738D0/en
Publication of NO891738LpublicationCriticalpatent/NO891738L/en
Publication of NO172885BpublicationCriticalpatent/NO172885B/en
Publication of NO172885CpublicationCriticalpatent/NO172885C/en