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经营范围
发明名称
Spot welding of brass and aluminum
摘要
申请公布号
US1770540(A)
申请公布日期
1930.07.15
申请号
US19290343691
申请日期
1929.03.01
申请人
PULLMAN CAR & MANUFACTURING CORPORATION
发明人
LUNN ERNEST
分类号
B23K35/36
主分类号
B23K35/36
代理机构
代理人
主权项
地址
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