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发明名称
摘要
申请公布号
JPH0439389(U)
申请公布日期
1992.04.03
申请号
JP19900079422U
申请日期
1990.07.25
申请人
发明人
分类号
F16L37/00;(IPC1-7):F16L37/00
主分类号
F16L37/00
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