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发明名称
Electrical arc welding device
摘要
申请公布号
US2817001(A)
申请公布日期
1957.12.17
申请号
US19550489472
申请日期
1955.02.21
申请人
WOODLING GEORGE V
发明人
WOODLING GEORGE V.
分类号
B23K9/20
主分类号
B23K9/20
代理机构
代理人
主权项
地址
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