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发明名称
摘要
申请公布号
DE2046005(A1)
申请公布日期
1971.06.24
申请号
DE19702046005
申请日期
1970.09.17
申请人
ZELLWEGER USTER AG
发明人
分类号
C01B31/08;(IPC1-7):C01B31/08
主分类号
C01B31/08
代理机构
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