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发明名称
摘要
申请公布号
JPH02114278(U)
申请公布日期
1990.09.12
申请号
JP19890023297U
申请日期
1989.03.01
申请人
发明人
分类号
F16L3/16;B23K9/28;(IPC1-7):F16L3/16
主分类号
F16L3/16
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