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发明名称
Lamp shade frame
摘要
申请公布号
US2900496(A)
申请公布日期
1959.08.18
申请号
US19560568815
申请日期
1956.03.01
申请人
WILLIAMS EVAN T
发明人
WILLIAMS EVAN T.
分类号
F21V1/00
主分类号
F21V1/00
代理机构
代理人
主权项
地址
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