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发明名称
Display device
摘要
申请公布号
US1989540(A)
申请公布日期
1935.01.29
申请号
US19330701180
申请日期
1933.12.06
申请人
BERKOWITZ LEON L
发明人
BERKOWITZ LEON L.
分类号
A47F5/11
主分类号
A47F5/11
代理机构
代理人
主权项
地址
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