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.)
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National Carbon Co Inc
Original Assignee
National Carbon Co Inc
Filing date
Publication date
Application filed by National Carbon Co IncfiledCriticalNational Carbon Co Inc
Application grantedgrantedCritical
Publication of AU370639ApublicationCriticalpatent/AU370639A/en
Publication of AU109681B2publicationCriticalpatent/AU109681B2/en