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Priority claimed from DE19681759253external-prioritypatent/DE1759253C3/de
Application filed by Polensky & ZoellnerfiledCriticalPolensky & Zoellner
Publication of DK134680BpublicationCriticalpatent/DK134680B/da
Application grantedgrantedCritical
Publication of DK134680CpublicationCriticalpatent/DK134680C/da