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公开(公告)号：EP0641583B1
公开(公告)日：1997-11-26
申请号：EP94401904.1
申请日：1994-08-26
Applicant: ALCATEL CIT
Inventor： Durand, Pascal
CPC classification number: C23G5/04 , B01D3/10 , B01D5/0045 , F04C27/02
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