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发明名称
Electric switch
摘要
申请公布号
US1809498(A)
申请公布日期
1931.06.09
申请号
US19230682103
申请日期
1923.12.21
申请人
FERRANTI, LIMITED
发明人
TUCKER ALFRED WILLIAM GEORGE
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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