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经营范围
发明名称
Tractor guide
摘要
申请公布号
US2146095(A)
申请公布日期
1939.02.07
申请号
US19370145329
申请日期
1937.05.28
申请人
WILLIAM SALZMAN
发明人
SALZMAN LOUIS
分类号
A01B69/04
主分类号
A01B69/04
代理机构
代理人
主权项
地址
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