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发明名称
Typewriting machine
摘要
申请公布号
US2248571(A)
申请公布日期
1941.07.08
申请号
US19370182419
申请日期
1937.12.30
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
WISE ELMER L.
分类号
B41J17/00
主分类号
B41J17/00
代理机构
代理人
主权项
地址
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