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发明名称
Chinese typewriter
摘要
申请公布号
US2534330(A)
申请公布日期
1950.12.19
申请号
US19480017135
申请日期
1948.03.26
申请人
KUOYEE WONG
发明人
WONG KUOYEE
分类号
B41J3/01
主分类号
B41J3/01
代理机构
代理人
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