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Priority claimed from US06/017,764external-prioritypatent/US4232887A/en
Priority claimed from US06/112,500external-prioritypatent/US4275206A/en
Application filed by Appleton Paper IncfiledCriticalAppleton Paper Inc
Priority to AT145884ApriorityCriticalpatent/AT383544B/de
Publication of ATA145884ApublicationCriticalpatent/ATA145884A/de
Application grantedgrantedCritical
Publication of AT383544BpublicationCriticalpatent/AT383544B/de