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发明名称
Light-reflecting unit and means for supporting the same
摘要
申请公布号
US1767160(A)
申请公布日期
1930.06.24
申请号
US19290366713
申请日期
1929.05.28
申请人
VINCENT SIDNEY C
发明人
VINCENT SIDNEY C.
分类号
G09F13/16
主分类号
G09F13/16
代理机构
代理人
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