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发明名称
SLIDE CALCULATOR
摘要
申请公布号
CA420750(A)
申请公布日期
1944.06.13
申请号
CAD420750
申请日期
申请人
EMORY S. RUSSELL
发明人
EMORY S. RUSSELL
分类号
主分类号
代理机构
代理人
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