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发明名称
Typewriting machine
摘要
申请公布号
US2213562(A)
申请公布日期
1940.09.03
申请号
US19380237401
申请日期
1938.10.28
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DODGE RONALD D.
分类号
B41J19/64;B41J29/42
主分类号
B41J19/64
代理机构
代理人
主权项
地址
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