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Priority claimed from US07/188,515external-prioritypatent/US4844328A/en
Application filed by Manville CorpfiledCriticalManville Corp
Publication of NO895315D0publicationCriticalpatent/NO895315D0/en
Publication of NO895315LpublicationCriticalpatent/NO895315L/en
Publication of NO175581BpublicationCriticalpatent/NO175581B/en
Publication of NO175581CpublicationCriticalpatent/NO175581C/en