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发明名称
Record perforating device
摘要
申请公布号
US3253778(A)
申请公布日期
1966.05.31
申请号
US19640410217
申请日期
1964.11.10
申请人
SPERRY RAND CORPORATION
发明人
HUNTER ALEXANDER;ROMEO ALBERT J.
分类号
G06K1/02
主分类号
G06K1/02
代理机构
代理人
主权项
地址
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