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发明名称
Improvements in insulated crossings for use in overhead trolley lines of trolley vehicles, railways, tramways and like systems
摘要
申请公布号
GB362145(A)
申请公布日期
1931.12.03
申请号
GB19300035448
申请日期
1930.11.25
申请人
ARTHUR THOMAS LAMBERT
发明人
分类号
B60M1/14
主分类号
B60M1/14
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