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发明名称
CARD INDEX DEVICE
摘要
申请公布号
HK35781(A)
申请公布日期
1981.07.31
申请号
HK19810000357
申请日期
1981.07.23
申请人
JOHN MFG LTD
发明人
分类号
B42F17/34;(IPC1-7):B42F17/34
主分类号
B42F17/34
代理机构
代理人
主权项
地址
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