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发明名称
摘要
申请公布号
DD127589(A1)
申请公布日期
1977.10.05
申请号
DD19760194918
申请日期
1976.09.22
申请人
发明人
分类号
B23K9/16;B23K9/18;(IPC1-7):B23K9/16
主分类号
B23K9/16
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代理人
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