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发明名称
摘要
申请公布号
JPS5393247(U)
申请公布日期
1978.07.29
申请号
JP19760176977U
申请日期
1976.12.28
申请人
发明人
分类号
G02C7/02;G02C7/16;(IPC1-7):G02C7/02
主分类号
G02C7/02
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代理人
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