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发明名称
Electric welding appliance
摘要
申请公布号
US1931250(A)
申请公布日期
1933.10.17
申请号
US19300427211
申请日期
1930.02.10
申请人
JOSEPH F. BOENNER
发明人
CAMPBELL JOE
分类号
B23K9/28
主分类号
B23K9/28
代理机构
代理人
主权项
地址
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