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发明名称
Rotary slide holder for projectors
摘要
申请公布号
US2938287(A)
申请公布日期
1960.05.31
申请号
US19580713951
申请日期
1958.02.07
申请人
BERNABEI ELMER J
发明人
BERNABEI ELMER J.
分类号
G03B23/06
主分类号
G03B23/06
代理机构
代理人
主权项
地址
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