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Priority claimed from DE1898111079Dexternal-prioritypatent/DE111079C/de
Priority claimed from DE1901139557Dexternal-prioritypatent/DE139557C/de
Application filed by Friedrich August HaselwanderfiledCriticalFriedrich August Haselwander
Application grantedgrantedCritical
Publication of AT14390BpublicationCriticalpatent/AT14390B/de