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发明名称
Sample holder and display device
摘要
申请公布号
US2670844(A)
申请公布日期
1954.03.02
申请号
US19530344161
申请日期
1953.03.23
申请人
STEINTHAL MARTIN B
发明人
STEINTHAL MARTIN B.
分类号
G09F5/04
主分类号
G09F5/04
代理机构
代理人
主权项
地址
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