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公开(公告)号：CH678658A5
公开(公告)日：1991-10-15
申请号：CH336089
申请日：1989-09-14
Applicant: BASF AG
Inventor： ZIMMERMANN CLIFTON DR-PHYS , LEWIN HELMUT , BIEBERICH CLAUS , BOCK WALTER
IPC: G01B11/00 , G01B11/24 , G01B11/245
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