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发明名称
Projector slide
摘要
申请公布号
US2042604(A)
申请公布日期
1936.06.02
申请号
US19350030225
申请日期
1935.07.08
申请人
KING EDWARD S
发明人
KING EDWARD S.
分类号
A63F5/04
主分类号
A63F5/04
代理机构
代理人
主权项
地址
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