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发明名称
CARD INDEX DEVICE
摘要
申请公布号
CA322026(A)
申请公布日期
1932.05.03
申请号
CAD322026
申请日期
申请人
JAMES B. STAFFORD, JR.
发明人
JAMES B. STAFFORD, JR.
分类号
主分类号
代理机构
代理人
主权项
地址
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