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 Gustav SchmiedlfiledCriticalGustav Schmiedl
Priority to AT497069ApriorityCriticalpatent/AT284736B/de
Priority to DE19696921551prioritypatent/DE6921551U/de
Application grantedgrantedCritical
Publication of AT284736BpublicationCriticalpatent/AT284736B/de