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经营范围
发明名称
Improvements in and relating to pressure butt welding apparatus
摘要
申请公布号
GB706406(A)
申请公布日期
1954.03.31
申请号
GB19500021581
申请日期
1950.09.01
申请人
NATIONAL RESEARCH DEVELOPMENT CORPORATION
发明人
BURTON JOHN EDWARD
分类号
B23K11/04
主分类号
B23K11/04
代理机构
代理人
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地址
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