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发明名称
Electroluminescent ceiling panel
摘要
申请公布号
US2992351(A)
申请公布日期
1961.07.11
申请号
US19570702089
申请日期
1957.12.11
申请人
UNITED PROGRESS, INC.
发明人
HOUTEN RAYMOND F. VAN DEN;COPELAND GEORGE R.
分类号
H05B33/26
主分类号
H05B33/26
代理机构
代理人
主权项
地址
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