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经营范围
发明名称
Record card controlled statistical machines
摘要
申请公布号
US2771293(A)
申请公布日期
1956.11.20
申请号
US19530376710
申请日期
1953.08.26
申请人
POWERS-SAMAS ACCOUNTING MACHINES LIMITED
发明人
GUTTRIDGE ERIC JOHN
分类号
G06K13/10
主分类号
G06K13/10
代理机构
代理人
主权项
地址
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