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发明名称
Typewriting machine
摘要
申请公布号
US2218736(A)
申请公布日期
1940.10.22
申请号
US19390272968
申请日期
1939.05.11
申请人
L. C. SMITH & CORONA TYPEWRITERS, INC.
发明人
AVERY HENRY ALLEN;BARKDOLL JOSEPH P.;EVANS LIONEL F.
分类号
B41J29/13
主分类号
B41J29/13
代理机构
代理人
主权项
地址
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