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发明名称
Listing adding machine
摘要
申请公布号
US2107142(A)
申请公布日期
1938.02.01
申请号
US19370122002
申请日期
1937.01.23
申请人
GARDNER COMPANY
发明人
CROSMAN LORING PICKERING
分类号
B41J11/62
主分类号
B41J11/62
代理机构
代理人
主权项
地址
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