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公开(公告)号：CH343373A
公开(公告)日：1959-12-31
申请号：CH343373D
申请日：1956-02-02
Applicant: INVENTA AG
Inventor： WALTER ZEHNDER , GABLER RUDOLF DR , BARMAN EMILE DR , CARL MAYER
IPC: B01J8/18
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