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发明名称
摘要
申请公布号
JPS53116822(U)
申请公布日期
1978.09.18
申请号
JP19770018875U
申请日期
1977.02.17
申请人
发明人
分类号
F16K27/00;F16K31/06;(IPC1-7):F16K27/00
主分类号
F16K27/00
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代理人
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