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发明名称
Improvements in or relating to the manufacture of brake drums and other annular bodies
摘要
申请公布号
GB371225(A)
申请公布日期
1932.04.21
申请号
GB19310019605
申请日期
1931.07.07
申请人
BUDD WHEEL COMPANY
发明人
分类号
B21D53/30
主分类号
B21D53/30
代理机构
代理人
主权项
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