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发明名称
Draft mechanism of tractors
摘要
申请公布号
US2224091(A)
申请公布日期
1940.12.03
申请号
US19400312142
申请日期
1940.01.02
申请人
VIVIAN VALLANCE JOHN
发明人
VALLANCE JOHN VIVIAN
分类号
B60D1/44
主分类号
B60D1/44
代理机构
代理人
主权项
地址
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