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发明名称
Attachment for electric lamps
摘要
申请公布号
US1960049(A)
申请公布日期
1934.05.22
申请号
US19320599377
申请日期
1932.03.17
申请人
FREDERICK COLEMAN
发明人
COLEMAN FREDERICK
分类号
F21V11/00;F21V17/00
主分类号
F21V11/00
代理机构
代理人
主权项
地址
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