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经营范围
发明名称
Electrode holder
摘要
申请公布号
US2411980(A)
申请公布日期
1946.12.03
申请号
US19430503735
申请日期
1943.09.25
申请人
CLARENCE RINGWALD
发明人
RINGWALD CLARENCE
分类号
B23K9/28
主分类号
B23K9/28
代理机构
代理人
主权项
地址
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