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发明名称
摘要
申请公布号
JPS4998420(U)
申请公布日期
1974.08.24
申请号
JP19720143146U
申请日期
1972.12.13
申请人
发明人
分类号
B23K9/133;B23K9/12;B23K37/00;(IPC1-7):B23K9/12
主分类号
B23K9/133
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代理人
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