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发明名称
DATA RETRIEVAL SYSTEM
摘要
申请公布号
US3457010(A)
申请公布日期
1969.07.22
申请号
USD3457010
申请日期
1966.10.28
申请人
GABRIEL PHILIPP
发明人
GABRIEL PHILIPP
分类号
G03B21/11;(IPC1-7):G03B23/12
主分类号
G03B21/11
代理机构
代理人
主权项
地址
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