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发明名称
摘要
申请公布号
JPH041681(U)
申请公布日期
1992.01.08
申请号
JP19900039772U
申请日期
1990.04.14
申请人
发明人
分类号
F04B37/12;F04B35/02;(IPC1-7):F04B37/12
主分类号
F04B37/12
代理机构
代理人
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