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 US05/720,563external-prioritypatent/US4193813A/en
Priority claimed from IN2080/CAL/76Aexternal-prioritypatent/IN145577B/en
Application filed by Chvapil MilosfiledCriticalChvapil Milos
Priority to IN543/DEL/78ApriorityCriticalpatent/IN155952B/en
Publication of IN155952BpublicationCriticalpatent/IN155952B/en