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发明名称
IMPROVEMENTS IN OR RELATING TO FRICTION WELDING
摘要
申请公布号
GB1214668(A)
申请公布日期
1970.12.02
申请号
GB19680016016
申请日期
1968.04.03
申请人
CATERPILLAR TRACTOR CO.
发明人
CARL DAVID WEISS
分类号
B23K20/12
主分类号
B23K20/12
代理机构
代理人
主权项
地址
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