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发明名称
摘要
申请公布号
JPH0422688(U)
申请公布日期
1992.02.25
申请号
JP19900062829U
申请日期
1990.06.14
申请人
发明人
分类号
F16L37/12;(IPC1-7):F16L37/12
主分类号
F16L37/12
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