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经营范围
发明名称
Trolley frog
摘要
申请公布号
US2268962(A)
申请公布日期
1942.01.06
申请号
US19410402503
申请日期
1941.07.15
申请人
CHEATHAM ELECTRIC SWITCHING DEVICE CO., INCORPORATED
发明人
RICHTERKESSING FRANK H.
分类号
B60M1/14
主分类号
B60M1/14
代理机构
代理人
主权项
地址
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