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经营范围
发明名称
Welding apparatus
摘要
申请公布号
US2460807(A)
申请公布日期
1949.02.08
申请号
US19450581088
申请日期
1945.03.05
申请人
DAVID T. SIEGEL
发明人
CHANOWITZ HARRY
分类号
B23K11/00
主分类号
B23K11/00
代理机构
代理人
主权项
地址
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