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公开(公告)号:US3144433A
公开(公告)日:1964-08-11
申请号:US3541260
申请日:1960-06-13
Applicant: DEGUSSA
Inventor: HEINRICH HOPFF , HERMANN METZLER
IPC: C08G2/00
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公开(公告)号:US3110700A
公开(公告)日:1963-11-12
申请号:US2208860
申请日:1960-04-14
Applicant: DEGUSSA
Inventor: HEINRICH HOPFF , ULRICH HOFFMANN , HERMANN METZLER
IPC: C08G2/00
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