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发明名称
Cotton planter opener
摘要
申请公布号
US2146222(A)
申请公布日期
1939.02.07
申请号
US19370157792
申请日期
1937.08.06
申请人
PACE JOSEPH S
发明人
PACE JOSEPH S.
分类号
A01C5/04
主分类号
A01C5/04
代理机构
代理人
主权项
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