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发明名称
摘要
申请公布号
JPH04133096(U)
申请公布日期
1992.12.10
申请号
JP19910072549U
申请日期
1991.05.31
申请人
发明人
分类号
F16L37/32;F16L37/28;F16L37/40;(IPC1-7):F16L37/32
主分类号
F16L37/32
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