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发明名称
Rotary display devices
摘要
申请公布号
US2810222(A)
申请公布日期
1957.10.22
申请号
US19550533757
申请日期
1955.09.12
申请人
TERRE VICTOR J
发明人
TERRE VICTOR J.
分类号
G09F11/23
主分类号
G09F11/23
代理机构
代理人
主权项
地址
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