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经营范围
发明名称
Mercury tube electric circuit closer
摘要
申请公布号
US2044882(A)
申请公布日期
1936.06.23
申请号
US19330694457
申请日期
1933.10.20
申请人
E. AND T. FAIRBANKS AND COMPANY
发明人
HOWARD ALFRED COLQUITT
分类号
G01G23/36
主分类号
G01G23/36
代理机构
代理人
主权项
地址
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