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发明名称
Typewriting machine
摘要
申请公布号
US1843416(A)
申请公布日期
1932.02.02
申请号
US19290392519
申请日期
1929.09.14
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
DOBSON WILLIAM A.
分类号
B41J11/24
主分类号
B41J11/24
代理机构
代理人
主权项
地址
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