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发明名称
Improvements in the suspension of lamps in inaccessible positions
摘要
申请公布号
GB327005(A)
申请公布日期
1930.03.27
申请号
GB19290009477
申请日期
1929.03.25
申请人
ROBERT AUSTIN WILLIAMS
发明人
分类号
F21V21/38
主分类号
F21V21/38
代理机构
代理人
主权项
地址
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