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发明名称
Apparatus for preparing seedbeds
摘要
申请公布号
US2652760(A)
申请公布日期
1953.09.22
申请号
US19510205363
申请日期
1951.01.10
申请人
CARD CALVIN G
发明人
CARD CALVIN G.
分类号
A01B19/06
主分类号
A01B19/06
代理机构
代理人
主权项
地址
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