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 NZ19840881Aexternal-prioritypatent/NZ198408A/en
Priority claimed from NZ20051382Aexternal-prioritypatent/NZ200513A/xx
Application filed by Worrallo A CfiledCriticalWorrallo A C
Priority claimed from EP82304741Aexternal-prioritypatent/EP0075417B1/de
Application grantedgrantedCritical
Publication of ATE25541T1publicationCriticalpatent/ATE25541T1/de