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发明名称
Typewriting machine
摘要
申请公布号
US2228313(A)
申请公布日期
1941.01.14
申请号
US19380231473
申请日期
1938.09.24
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
HILLIS JAMES L.
分类号
B41J13/12
主分类号
B41J13/12
代理机构
代理人
主权项
地址
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