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发明名称
Roll mill
摘要
申请公布号
US2025348(A)
申请公布日期
1935.12.24
申请号
US19330676020
申请日期
1933.06.15
申请人
GUSTAF HELLNER KARL;GUSTAF JOHANSSON AXEL
发明人
HELLNER KARL GUSTAF;JOHANSSON AXEL GUSTAF
分类号
B30B9/20
主分类号
B30B9/20
代理机构
代理人
主权项
地址
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