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发明名称
Typewriting machine
摘要
申请公布号
US2189066(A)
申请公布日期
1940.02.06
申请号
US19380207558
申请日期
1938.05.12
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
HELMOND WILLIAM F.
分类号
B41J5/12
主分类号
B41J5/12
代理机构
代理人
主权项
地址
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