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经营范围
发明名称
Improvements in or relating to electric time switches
摘要
申请公布号
GB689913(A)
申请公布日期
1953.04.08
申请号
GB19500013454
申请日期
1950.05.30
申请人
FREDERICK JOSEPH SOUTHERN
发明人
分类号
H01H43/12
主分类号
H01H43/12
代理机构
代理人
主权项
地址
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