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经营范围
发明名称
Welding apparatus
摘要
申请公布号
US1850454(A)
申请公布日期
1932.03.22
申请号
US19290363488
申请日期
1929.05.16
申请人
TRUSSBILT STEEL DOORS, INC.
发明人
GROSS ARTHUR R.
分类号
B23K11/24
主分类号
B23K11/24
代理机构
代理人
主权项
地址
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