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发明名称
Improvements in change-over electric switches
摘要
申请公布号
GB547856(A)
申请公布日期
1942.09.15
申请号
GB19410003396
申请日期
1941.03.12
申请人
WILSON WELDER AND METALS CO., INC.
发明人
分类号
H01H9/00
主分类号
H01H9/00
代理机构
代理人
主权项
地址
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