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发明名称
Apparatus for use in electric spot welding
摘要
申请公布号
GB382055(A)
申请公布日期
1932.10.20
申请号
GB19310028730
申请日期
1931.10.16
申请人
ROBERT DAVIDSON BELL
发明人
分类号
B23K11/31
主分类号
B23K11/31
代理机构
代理人
主权项
地址
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