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71.发明公开
公开(公告)号：EP0029198A3
公开(公告)日：1981-06-10
申请号：EP80106930
申请日：1980-11-10
Applicant: Siemens Aktiengesellschaft
Inventor： Lange, Gerhard, Dipl.-Chem. , Saller, Helmut
IPC: G02B05/16
CPC classification number: G02B6/4479 , G02B6/4427 , Y10S516/903
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