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Publication date
Priority claimed from US07/000,224external-prioritypatent/US4741749A/en
Application filed by Ppg Industries IncfiledCriticalPpg Industries Inc
Priority to FI905351ApriorityCriticalpatent/FI86166C/fi
Publication of FI905351A0publicationCriticalpatent/FI905351A0/fi
Application grantedgrantedCritical
Publication of FI86166BpublicationCriticalpatent/FI86166B/fi
Publication of FI86166CpublicationCriticalpatent/FI86166C/fi