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发明名称
摘要
申请公布号
JPH0438381(U)
申请公布日期
1992.03.31
申请号
JP19900081868U
申请日期
1990.07.31
申请人
发明人
分类号
B25B21/00;B25F1/02;(IPC1-7):B25F1/02
主分类号
B25B21/00
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代理人
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