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发明名称
Projected spotlight apparatus
摘要
申请公布号
US2705278(A)
申请公布日期
1955.03.29
申请号
US19520309817
申请日期
1952.09.16
申请人
PRATT JAMES A
发明人
PRATT JAMES A.
分类号
G03B15/02
主分类号
G03B15/02
代理机构
代理人
主权项
地址
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