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发明名称
摘要
申请公布号
JPS6219728(Y2)
申请公布日期
1987.05.20
申请号
JP19780156449U
申请日期
1978.11.15
申请人
发明人
分类号
E03B7/10;E03B7/12;F16K35/00;(IPC1-7):E03B7/10
主分类号
E03B7/10
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