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发明名称
Improvements in the manufacture of disc wheels
摘要
申请公布号
GB351246(A)
申请公布日期
1931.06.25
申请号
GB19300019237
申请日期
1930.06.24
申请人
GEORGE BAKER
发明人
分类号
B21H1/02
主分类号
B21H1/02
代理机构
代理人
主权项
地址
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