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发明名称
摘要
申请公布号
JPS4974249(U)
申请公布日期
1974.06.27
申请号
JP19720117644U
申请日期
1972.10.11
申请人
发明人
分类号
G01B3/30;B23K31/00;(IPC1-7):B23K31/00
主分类号
G01B3/30
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