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发明名称
Trolley duct
摘要
申请公布号
US2681392(A)
申请公布日期
1954.06.15
申请号
US19500164248
申请日期
1950.05.25
申请人
BULLDOG ELECTRIC PRODUCTS CO.
发明人
HERRMANN JOHN A.
分类号
H02G5/04
主分类号
H02G5/04
代理机构
代理人
主权项
地址
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