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发明名称
摘要
申请公布号
JPS49124929(U)
申请公布日期
1974.10.25
申请号
JP19730024363U
申请日期
1973.02.26
申请人
发明人
分类号
G03B27/32;G03B21/11;G06F17/30;G06K17/00;(IPC1-7):G06K19/08;G06F15/40
主分类号
G03B27/32
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代理人
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地址
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