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发明名称
摘要
申请公布号
JPH03100007(U)
申请公布日期
1991.10.18
申请号
JP19900008623U
申请日期
1990.01.31
申请人
发明人
分类号
B23B31/20;B23B31/00;B23B31/02;B23B31/36;(IPC1-7):B23B31/36
主分类号
B23B31/20
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代理人
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