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Priority claimed from CH1103978Aexternal-prioritypatent/CH628303A5/en
Application filed by Gefitec SafiledCriticalGefitec Sa
Publication of DK450179ApublicationCriticalpatent/DK450179A/en
Publication of DK145622BpublicationCriticalpatent/DK145622B/en
Application grantedgrantedCritical
Publication of DK145622CpublicationCriticalpatent/DK145622C/en