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发明名称
Calculating machine
摘要
申请公布号
US2355462(A)
申请公布日期
1944.08.08
申请号
US19420464469
申请日期
1942.11.04
申请人
SEVERIN NILSSON ROBERT
发明人
NILSSON ROBERT SEVERIN
分类号
主分类号
代理机构
代理人
主权项
地址
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