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 Internat Telesystems IncfiledCriticalInternat Telesystems Inc
Priority to IN991DE1988priorityCriticalpatent/IN174808B/en
Publication of IN174808BpublicationCriticalpatent/IN174808B/en