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发明名称
摘要
申请公布号
DE2218973(A1)
申请公布日期
1972.11.09
申请号
DE19722218973
申请日期
1972.04.19
申请人
发明人
分类号
C04B41/48;C04B41/63;C09D4/00;(IPC1-7):C04B41/00
主分类号
C04B41/48
代理机构
代理人
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