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经营范围
发明名称
Typewriting machine
摘要
申请公布号
US2142245(A)
申请公布日期
1939.01.03
申请号
US19360067884
申请日期
1936.03.09
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
HELMOND WILLIAM F.
分类号
B41J13/20
主分类号
B41J13/20
代理机构
代理人
主权项
地址
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