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发明名称
Typewriting machine
摘要
申请公布号
US1753495(A)
申请公布日期
1930.04.08
申请号
US19270220813
申请日期
1927.09.20
申请人
ELECTROMATIC TYPEWRITERS, INC.
发明人
BARDWELL HAROLD F.
分类号
B41J23/12
主分类号
B41J23/12
代理机构
代理人
主权项
地址
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