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经营范围
发明名称
KEY OPERATED PORTABLE CALCULATING MACHINE
摘要
申请公布号
CA600093(A)
申请公布日期
1960.06.21
申请号
CAD600093
申请日期
申请人
DONALD H. REEVES
发明人
DONALD H. REEVES
分类号
主分类号
代理机构
代理人
主权项
地址
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