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经营范围
发明名称
Gas blanketed metal arc welding
摘要
申请公布号
US2606267(A)
申请公布日期
1952.08.05
申请号
US19490076063
申请日期
1949.02.12
申请人
UNION CARBIDE AND CARBON CORPORATION
发明人
JR. THOMAS MCELRATH,
分类号
B23K9/29
主分类号
B23K9/29
代理机构
代理人
主权项
地址
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