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发明名称
摘要
申请公布号
JPS53151639(U)
申请公布日期
1978.11.29
申请号
JP19770057356U
申请日期
1977.05.06
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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代理人
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