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发明名称
KEY-DRIVEN CALCULATING MACHINE
摘要
申请公布号
CA490637(A)
申请公布日期
1953.02.17
申请号
CAD490637
申请日期
申请人
FELT AND TARRANT MANUFACTURING COMPANY
发明人
JOSEPH A. V. TURCK
分类号
主分类号
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