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发明名称
Disk harrow
摘要
申请公布号
US2406866(A)
申请公布日期
1946.09.03
申请号
US19440527428
申请日期
1944.03.21
申请人
THOMPSON ERNEST S
发明人
THOMPSON ERNEST S.
分类号
A01B21/08
主分类号
A01B21/08
代理机构
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