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发明名称
摘要
申请公布号
JPH0480909(U)
申请公布日期
1992.07.14
申请号
JP19900123519U
申请日期
1990.11.27
申请人
发明人
分类号
F15B20/00;(IPC1-7):F15B20/00
主分类号
F15B20/00
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