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发明名称
METHODS OF ARC WELDING IN A SUPERATMOSPHERIC ENVIRONMENT
摘要
申请公布号
GB1564753(A)
申请公布日期
1980.04.16
申请号
GB19770009469
申请日期
1977.03.07
申请人
BOC LTD
发明人
分类号
B23K9/00;B23K35/38;(IPC1-7):B23K9/16;B23K9/24
主分类号
B23K9/00
代理机构
代理人
主权项
地址
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