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发明名称
摘要
申请公布号
JPS5232273(U)
申请公布日期
1977.03.07
申请号
JP19750118233U
申请日期
1975.08.29
申请人
发明人
分类号
G03B42/04;F16B1/00;(IPC1-7):G03B41/18
主分类号
G03B42/04
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