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 - Lifetime
Application number
AU5905/42A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Carbon Co Inc
Original Assignee
National Carbon Co Inc
Filing date
Publication of AU117333B2publicationCriticalpatent/AU117333B2/en
Application filed by National Carbon Co IncfiledCriticalNational Carbon Co Inc