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经营范围
发明名称
Arc regulator apparatus
摘要
申请公布号
US2622223(A)
申请公布日期
1952.12.16
申请号
US19500202069
申请日期
1950.12.21
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
BUCKINGHAM WILLIAM D.
分类号
H05B31/00
主分类号
H05B31/00
代理机构
代理人
主权项
地址
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