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发明名称
Improvements in, and connected with, electric switches controlling main and auxiliary circuits
摘要
申请公布号
GB515834(A)
申请公布日期
1939.12.15
申请号
GB19380016188
申请日期
1938.05.31
申请人
J. A. CRABTREE & COMPANY LIMITED
发明人
分类号
H01H50/54
主分类号
H01H50/54
代理机构
代理人
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