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 Inst Gas TechnologyfiledCriticalInst Gas Technology
Priority to GR870639ApriorityCriticalpatent/GR870639B/en
Publication of GR870639BpublicationCriticalpatent/GR870639B/en