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发明名称
Card sensing mechanism
摘要
申请公布号
US2743868(A)
申请公布日期
1956.05.01
申请号
US19530347596
申请日期
1953.04.08
申请人
BURROUGHS CORPORATION
发明人
WOCKENFUSS WILLIAM
分类号
主分类号
代理机构
代理人
主权项
地址
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