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 Krantz H FafiledCriticalKrantz H Fa
Priority to AT171467ApriorityCriticalpatent/AT285542B/de
Application grantedgrantedCritical
Publication of AT285542BpublicationCriticalpatent/AT285542B/de