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 Helmuth SchmoockfiledCriticalHelmuth Schmoock
Priority to IN2CA1990priorityCriticalpatent/IN174026B/en
Publication of IN174026BpublicationCriticalpatent/IN174026B/en