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发明名称
Improvements relating to the production of elongated metal tubular parts
摘要
申请公布号
GB629131(A)
申请公布日期
1949.09.13
申请号
GB19470012114
申请日期
1947.05.05
申请人
SAMUEL JAMES EVERETT
发明人
分类号
C21D8/10;C22F1/00
主分类号
C21D8/10
代理机构
代理人
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地址
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