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经营范围
发明名称
Calculating machine
摘要
申请公布号
US2667304(A)
申请公布日期
1954.01.26
申请号
US19480029476
申请日期
1948.05.27
申请人
ASSOCIATED DEVELOPMENT AND RESEARCH CORPORATION
发明人
WALLACH ROBERT S.;TORKELSON TORKEL E.
分类号
G06C7/08
主分类号
G06C7/08
代理机构
代理人
主权项
地址
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