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经营范围
发明名称
Welding apparatus
摘要
申请公布号
US3238347(A)
申请公布日期
1966.03.01
申请号
US19640408457
申请日期
1964.10.26
申请人
NORTH AMERICAN AVIATION, INC.
发明人
ROHRBERG RODERICK G.;ARMITAGE EARL STANLEY
分类号
B23K9/028
主分类号
B23K9/028
代理机构
代理人
主权项
地址
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