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经营范围
发明名称
Submerged arc welding apparatus
摘要
申请公布号
US2972042(A)
申请公布日期
1961.02.14
申请号
US19590805176
申请日期
1959.04.09
申请人
ALLIS-CHALMERS MANUFACTURING COMPANY
发明人
ASHBAKER CHARLES A.
分类号
B23K9/038
主分类号
B23K9/038
代理机构
代理人
主权项
地址
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