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发明名称
Displaying device
摘要
申请公布号
US2019384(A)
申请公布日期
1935.10.29
申请号
US19340728168
申请日期
1934.05.29
申请人
ARTHUR BALDWIN JAMES
发明人
BALDWIN JAMES ARTHUR
分类号
A47F3/022;A47F3/14
主分类号
A47F3/022
代理机构
代理人
主权项
地址
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