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发明名称
Typewriting machine
摘要
申请公布号
US1988189(A)
申请公布日期
1935.01.15
申请号
US19310564482
申请日期
1931.09.23
申请人
UNDERWOOD ELLIOTT FISHER COMPANY
发明人
DOBSON WILLIAM A.
分类号
B41J13/036
主分类号
B41J13/036
代理机构
代理人
主权项
地址
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