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发明名称
摘要
申请公布号
JPS5372946(U)
申请公布日期
1978.06.19
申请号
JP19760155164U
申请日期
1976.11.20
申请人
发明人
分类号
G02B25/04;G02B27/02;(IPC1-7):G02B25/04
主分类号
G02B25/04
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