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发明名称
Power-driven field cultivator with soil-sifting attachment
摘要
申请公布号
US3139939(A)
申请公布日期
1964.07.07
申请号
US19620179886
申请日期
1962.03.15
申请人
FLOYD GRAVES
发明人
VICKERY LESLIE STANTON
分类号
A01B43/00;A01B77/00
主分类号
A01B43/00
代理机构
代理人
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地址
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