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经营范围
发明名称
Agricultural implement
摘要
申请公布号
US2149190(A)
申请公布日期
1939.02.28
申请号
US19380187947
申请日期
1938.01.31
申请人
SMITH JAMES R
发明人
SMITH JAMES R.
分类号
A01B13/16
主分类号
A01B13/16
代理机构
代理人
主权项
地址
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