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发明名称
摘要
申请公布号
JPS555340(Y2)
申请公布日期
1980.02.07
申请号
JP19730141190U
申请日期
1973.12.07
申请人
发明人
分类号
G09B1/00;B42D15/00;B42D15/10;G06F3/06;G06K19/00;G09B7/00;G09B19/00;(IPC1-7):B42D15/00
主分类号
G09B1/00
代理机构
代理人
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地址
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