Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ludolf Stegherr FafiledCriticalLudolf Stegherr Fa
Publication of ATA371275ApublicationCriticalpatent/ATA371275A/de
Application grantedgrantedCritical
Publication of AT341189BpublicationCriticalpatent/AT341189B/de