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发明名称
ELECTROLUMINESCENT DEVICE
摘要
申请公布号
CA639689(A)
申请公布日期
1962.04.10
申请号
CAD639689
申请日期
申请人
SYLVANIA ELECTRIC PRODUCTS INC.
发明人
BERNARD E. BARTELS
分类号
主分类号
代理机构
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