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发明名称
摘要
申请公布号
JPH0483509(U)
申请公布日期
1992.07.21
申请号
JP19900128744U
申请日期
1990.11.29
申请人
发明人
分类号
B23B31/103;B23B31/12;(IPC1-7):B23B31/103
主分类号
B23B31/103
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