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经营范围
发明名称
Time controlled electric switch
摘要
申请公布号
US2284819(A)
申请公布日期
1942.06.02
申请号
US19400346857
申请日期
1940.07.22
申请人
GREEN HARTON WILL
发明人
HARTON WILL GREEN
分类号
G04C21/22
主分类号
G04C21/22
代理机构
代理人
主权项
地址
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