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Priority claimed from CH116271Aexternal-prioritypatent/CH521166A/de
Application filed by Kaelin J RfiledCriticalKaelin J R
Priority to AT694874ApriorityCriticalpatent/AT330553B/de
Publication of ATA694874ApublicationCriticalpatent/ATA694874A/de
Application grantedgrantedCritical
Publication of AT330553BpublicationCriticalpatent/AT330553B/de