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发明名称
MANUFACTURE OF ANNULAR ARTICLES
摘要
申请公布号
GB9222255(D0)
申请公布日期
1992.12.09
申请号
GB19920022255
申请日期
1992.10.23
申请人
ROLLS-ROYCE PLC
发明人
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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