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发明名称
Improvements in water-cooled hollow rollers
摘要
申请公布号
GB434344(A)
申请公布日期
1935.08.29
申请号
GB19350012836
申请日期
1935.04.30
申请人
FRANZ BERNHARD LEHMANN
发明人
分类号
B02C4/44
主分类号
B02C4/44
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代理人
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