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发明名称
摘要
申请公布号
JPS5531002(U)
申请公布日期
1980.02.28
申请号
JP19780112971U
申请日期
1978.08.19
申请人
发明人
分类号
F16L5/00;F16L5/02;(IPC1-7):F16L5/02
主分类号
F16L5/00
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代理人
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