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公开(公告)号：AU638511B2
公开(公告)日：1993-07-01
申请号：AU6720590
申请日：1990-11-06
Applicant: STFI
Inventor： PER ENGSTRAND , LARS-AKE HAMMAR , BIRGER SJOGREN , BORJE SVENSSON , MYAT HTUN
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