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发明名称
摘要
申请公布号
JPS53125123(U)
申请公布日期
1978.10.04
申请号
JP19770029752U
申请日期
1977.03.14
申请人
发明人
分类号
F16K31/163;F16K1/22;F16K31/38;(IPC1-7):F16K1/22
主分类号
F16K31/163
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代理人
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