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 Claude DeyrallfiledCriticalClaude Deyrall
Priority to GR560117216ApriorityCriticalpatent/GR17216B/en
Publication of GR17216BpublicationCriticalpatent/GR17216B/en