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发明名称
摘要
申请公布号
JPH0484482(U)
申请公布日期
1992.07.22
申请号
JP19900128673U
申请日期
1990.11.30
申请人
发明人
分类号
E03F3/06;E03F5/04;(IPC1-7):E03F3/06
主分类号
E03F3/06
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