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发明名称
Improvements in and connected with electric switches of the push button type
摘要
申请公布号
GB620961(A)
申请公布日期
1949.04.01
申请号
GB19470003379
申请日期
1947.02.05
申请人
J. A. CRABTREE & CO. LIMITED;WALTER EDWARD HILL
发明人
分类号
H01H13/06
主分类号
H01H13/06
代理机构
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