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发明名称
Typewriting machine
摘要
申请公布号
US2357142(A)
申请公布日期
1944.08.29
申请号
US19420442673
申请日期
1942.05.12
申请人
SMITH HOWARD B
发明人
SMITH HOWARD B.
分类号
B41J3/26
主分类号
B41J3/26
代理机构
代理人
主权项
地址
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