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发明名称
摘要
申请公布号
JPH02128891(U)
申请公布日期
1990.10.24
申请号
JP19890038818U
申请日期
1989.03.31
申请人
发明人
分类号
F16L41/02;F16L47/02;(IPC1-7):F16L41/02
主分类号
F16L41/02
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