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1.
公开(公告)号:US3376255A
公开(公告)日:1968-04-02
申请号:US55466766
申请日:1966-06-02
Applicant: BAYER AG
Inventor: WAGNER KUNO , SCHEURLEN HANS , KRITZLER HELMUTH
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2.
公开(公告)号:US3448169A
公开(公告)日:1969-06-03
申请号:US3448169D
申请日:1967-07-12
Applicant: BAYER AG
Inventor: WAGNER KUNO , SCHEURLEN HANS , KRITZLER HELMUTH
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