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.)
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Application filed by Mayer & CofiledCriticalMayer & Co
Priority to AT79263ApriorityCriticalpatent/AT238591B/de
Priority to CH853163Aprioritypatent/CH413643A/de
Application grantedgrantedCritical
Publication of AT238591BpublicationCriticalpatent/AT238591B/de