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发明名称
Improvements in expanding wheels and other rotary members
摘要
申请公布号
GB481423(A)
申请公布日期
1938.03.09
申请号
GB19380001565
申请日期
1936.09.09
申请人
WILLIAM DUDLEY;BERTRAM OSCAR MORRIS
发明人
分类号
B24B47/18
主分类号
B24B47/18
代理机构
代理人
主权项
地址
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