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经营范围
发明名称
Seed planter
摘要
申请公布号
US2394778(A)
申请公布日期
1946.02.12
申请号
US19440520511
申请日期
1944.01.31
申请人
JOHN A. BJORBACK
发明人
HOLLOWAY HAMILTON R.
分类号
A01C7/04
主分类号
A01C7/04
代理机构
代理人
主权项
地址
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