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发明名称
ABSTICHTIEGEL
摘要
申请公布号
DE1919415(B2)
申请公布日期
1977.07.14
申请号
DE19691919415
申请日期
1969.04.17
申请人
发明人
分类号
C01B31/32;(IPC1-7):C01B31/32
主分类号
C01B31/32
代理机构
代理人
主权项
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