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发明名称
摘要
申请公布号
DD124016(A1)
申请公布日期
1977.02.02
申请号
DD19760191406
申请日期
1976.02.23
申请人
发明人
分类号
B23K9/04;(IPC1-7):B23K9/04
主分类号
B23K9/04
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代理人
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地址
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