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
Priority claimed from US07/044,469external-prioritypatent/US4785948A/en
Priority claimed from IN49/CAL/88Aexternal-prioritypatent/IN168242B/en
Application filed by Plasticon PatentsfiledCriticalPlasticon Patents
Priority to IN93/CAL/90ApriorityCriticalpatent/IN169077B/en
Publication of IN169077BpublicationCriticalpatent/IN169077B/en