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发明名称
摘要
申请公布号
JPS5737111(Y2)
申请公布日期
1982.08.16
申请号
JP19780150919U
申请日期
1978.11.01
申请人
发明人
分类号
G04G17/02;G02B6/00;G04B37/14;G04B45/00;G04G99/00;G12B9/08;(IPC1-7):G04B37/14;G02B5/14
主分类号
G04G17/02
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代理人
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