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发明名称
Break-down mill
摘要
申请公布号
US2058717(A)
申请公布日期
1936.10.27
申请号
US19330684181
申请日期
1933.08.08
申请人
ALEXANDER PATERSON
发明人
PATERSON ALEXANDER
分类号
B21B13/04
主分类号
B21B13/04
代理机构
代理人
主权项
地址
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