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发明名称
摘要
申请公布号
JPH0539764(U)
申请公布日期
1993.05.28
申请号
JP19910096284U
申请日期
1991.10.28
申请人
发明人
分类号
B23K9/20;E04B5/40;(IPC1-7):B23K9/20
主分类号
B23K9/20
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代理人
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