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发明名称
Typewriting machine
摘要
申请公布号
US1854454(A)
申请公布日期
1932.04.19
申请号
US19310520241
申请日期
1931.03.05
申请人
ELECTROMATIC TYPEWRITERS, INC.
发明人
CRUMRINE CHESTER W.
分类号
B41J5/38
主分类号
B41J5/38
代理机构
代理人
主权项
地址
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