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发明名称
摘要
申请公布号
JPS6031575(U)
申请公布日期
1985.03.04
申请号
JP19830123328U
申请日期
1983.08.10
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发明人
分类号
F16L21/04;(IPC1-7):F16L21/04
主分类号
F16L21/04
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