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发明名称
摘要
申请公布号
JPH03100691(U)
申请公布日期
1991.10.21
申请号
JP19900010059U
申请日期
1990.02.02
申请人
发明人
分类号
F16L33/00;F16L33/28;(IPC1-7):F16L33/00
主分类号
F16L33/00
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