Legal status (The legal status 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 status listed.)
Expired
Application number
AU31581/67A
Inventor
FRIEDRICH and SIEGFRIED MELCHIOR RICHARD
Filing date
Publication date
Application filedfiledCritical
Publication of AU3158167ApublicationCriticalpatent/AU3158167A/en