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Priority claimed from DEH25877Aexternal-prioritypatent/DE1184063B/en
Priority claimed from DEH20530Uexternal-prioritypatent/DE1748796U/en
Application filed by Karl WerbeckfiledCriticalKarl Werbeck
Application grantedgrantedCritical
Publication of BE586082QpublicationCriticalpatent/BE586082Q/en