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发明名称
Improvements in ploughshares and shares for root crop raising machines
摘要
申请公布号
GB481029(A)
申请公布日期
1938.03.04
申请号
GB19360024308
申请日期
1936.09.05
申请人
FRANK JAMES LEA
发明人
分类号
A01B15/04
主分类号
A01B15/04
代理机构
代理人
主权项
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