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发明名称
Calculating and accounting machine
摘要
申请公布号
US2176931(A)
申请公布日期
1939.10.24
申请号
US19310572075
申请日期
1931.10.30
申请人
ADDRESSOGRAPH-MULTIGRAPH CORPORATION
发明人
SMITH CLYDE
分类号
G06F7/46
主分类号
G06F7/46
代理机构
代理人
主权项
地址
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