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发明名称
摘要
申请公布号
JPS4874824(U)
申请公布日期
1973.09.18
申请号
JP19720002219U
申请日期
1971.12.23
申请人
发明人
分类号
B23K9/235;B23K9/00;B23K37/00;(IPC1-7):B23K37/00
主分类号
B23K9/235
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