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经营范围
发明名称
Automatic electric switch
摘要
申请公布号
US2503632(A)
申请公布日期
1950.04.11
申请号
US19490088545
申请日期
1949.04.20
申请人
PORTER PRATHER
发明人
PRATHER PORTER
分类号
B60Q11/00
主分类号
B60Q11/00
代理机构
代理人
主权项
地址
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