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经营范围
发明名称
Switching mechanism
摘要
申请公布号
US1883625(A)
申请公布日期
1932.10.18
申请号
US19320593802
申请日期
1932.02.18
申请人
DOUGLAS HARRY A
发明人
DOUGLAS HARRY A.
分类号
H01H19/11;H01H19/56
主分类号
H01H19/11
代理机构
代理人
主权项
地址
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