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发明名称
Illuminated light pull cord
摘要
申请公布号
US2954460(A)
申请公布日期
1960.09.27
申请号
US19570704389
申请日期
1957.12.23
申请人
RANFIELD CHARLES J
发明人
RANFIELD CHARLES J.
分类号
F21V23/04
主分类号
F21V23/04
代理机构
代理人
主权项
地址
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