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发明名称
Light projecting machine
摘要
申请公布号
US1876511(A)
申请公布日期
1932.09.06
申请号
US19300504268
申请日期
1930.12.23
申请人
OBERG ANTON J;STOEFEN ROBERT R
发明人
OBERG ANTON J.;STOEFEN ROBERT R.
分类号
F21S8/00
主分类号
F21S8/00
代理机构
代理人
主权项
地址
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