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经营范围
发明名称
TROLLEY-CONDUCTOR DEVICE
摘要
申请公布号
CA392313(A)
申请公布日期
1940.11.05
申请号
CAD392313
申请日期
申请人
CHEATHAM ELECTRIC SWITCHING DEVICE COMPANY
发明人
SAMUEL S. STOLP
分类号
主分类号
代理机构
代理人
主权项
地址
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