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经营范围
发明名称
Welding apparatus
摘要
申请公布号
US2274742(A)
申请公布日期
1942.03.03
申请号
US19410392885
申请日期
1941.05.10
申请人
BELA RONAY
发明人
RONAY BELA
分类号
B23K9/12
主分类号
B23K9/12
代理机构
代理人
主权项
地址
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