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发明名称
摘要
申请公布号
FR2238689(A1)
申请公布日期
1975.02.21
申请号
FR19740026308
申请日期
1974.07.29
申请人
DEUTSCHE GOLD SILBER SCHEIDEANST,DT
发明人
分类号
C03C4/02;C03C8/14;C09C1/00;C09C1/28;(IPC1-7):04B41/32
主分类号
C03C4/02
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代理人
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