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发明名称
Automatic typewriter
摘要
申请公布号
US2493709(A)
申请公布日期
1950.01.03
申请号
US19440517154
申请日期
1944.01.06
申请人
CARLOS WITTENMYER
发明人
WITTENMYER CARLOS
分类号
B41J3/44
主分类号
B41J3/44
代理机构
代理人
主权项
地址
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