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发明名称
Improvements in grain cleaning machines
摘要
申请公布号
GB353915(A)
申请公布日期
1931.07.22
申请号
GB19300012455
申请日期
1930.04.22
申请人
ALBERT ERNEST UNSTEAD
发明人
分类号
B02B3/10
主分类号
B02B3/10
代理机构
代理人
主权项
地址
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