A process of recovering alkali from black liquor of papermaking

Details for Australian Patent Application No. 2002250794 (hide)

International Classifications

Event Publications

25 September 2003 Application Open to Public Inspection

Published as AU-B-2002250794

17 February 2005 Assignment before Grant

Ai, Tianzhao The application has been assigned to Ai, Tianzhao; Ai, Dong; Dong, Xuesheng; Dong, Xuezhi

12 October 2006 Application Accepted

Published as AU-B-2002250794

8 February 2007 Standard Patent Sealed

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