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经营范围
发明名称
Gang plow
摘要
申请公布号
US2136550(A)
申请公布日期
1938.11.15
申请号
US19370158091
申请日期
1937.08.09
申请人
MICHAEL HOWARD
发明人
HOWARD MICHAEL
分类号
A01B59/042
主分类号
A01B59/042
代理机构
代理人
主权项
地址
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