AU90145SAU198305947FAU198305947FAU90145SAU 90145 SAU90145 SAU 90145SAU 198305947 FAU198305947 FAU 198305947FAU 198305947 FAU198305947 FAU 198305947FAU 90145 SAU90145 SAU 90145S
Authority
AU
Australia
Prior art keywords
drawing aid
aid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
AU198305947F
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 filedfiledCritical
Priority to AU198305947FpriorityCriticalpatent/AU90145S/en
Publication of AU90145SpublicationCriticalpatent/AU90145S/en