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发明名称
摘要
申请公布号
JPS5040405(Y2)
申请公布日期
1975.11.18
申请号
JP19730108820U
申请日期
1973.09.19
申请人
发明人
分类号
F16L57/00;A47K11/02;E03D9/00;E03D11/00;E03D11/02;(IPC1-7):E03D11/00
主分类号
F16L57/00
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代理人
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