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发明名称
Data transfer system
摘要
申请公布号
US2905930(A)
申请公布日期
1959.09.22
申请号
US19540431766
申请日期
1954.05.24
申请人
UNDERWOOD CORPORATION
发明人
GOLDEN DANIEL
分类号
G06K3/00
主分类号
G06K3/00
代理机构
代理人
主权项
地址
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