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发明名称
Improvements in the production of cylindrical liners
摘要
申请公布号
GB719864(A)
申请公布日期
1954.12.08
申请号
GB19510027165
申请日期
1951.11.20
申请人
FRANCIS ARTHUR CATT
发明人
分类号
B21D53/30
主分类号
B21D53/30
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代理人
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