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发明名称
摘要
申请公布号
JPS5899360(U)
申请公布日期
1983.07.06
申请号
JP19810198695U
申请日期
1981.12.26
申请人
发明人
分类号
E03D1/012;(IPC1-7):E03D1/012
主分类号
E03D1/012
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