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摘要
申请公布号
US2245142(A)
申请公布日期
1941.06.10
申请号
US19400338939
申请日期
1940.06.05
申请人
MONROE CALCULATING MACHINE COMPANY
发明人
CROSMAN LORING PICKERING
分类号
B41J11/38;B41J19/84
主分类号
B41J11/38
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