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发明名称
WELDING APPARATUS
摘要
申请公布号
CA328347(A)
申请公布日期
1932.12.06
申请号
CAD328347
申请日期
申请人
WILSON WELDER AND METALS COMPANY
发明人
ALEXANDER CHURCHWARD
分类号
主分类号
代理机构
代理人
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