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发明名称
Typewriting machine
摘要
申请公布号
US2134821(A)
申请公布日期
1938.11.01
申请号
US19350036272
申请日期
1935.08.15
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
HELMOND WILLIAM F.
分类号
B41J13/048
主分类号
B41J13/048
代理机构
代理人
主权项
地址
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