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发明名称
摘要
申请公布号
JPS5899383(U)
申请公布日期
1983.07.06
申请号
JP19810190968U
申请日期
1981.12.23
申请人
发明人
分类号
E03F5/14;E03F5/16;(IPC1-7):E03F5/14
主分类号
E03F5/14
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