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经营范围
发明名称
Implement hitch with automatic tracking means
摘要
申请公布号
US2831705(A)
申请公布日期
1958.04.22
申请号
US19560595887
申请日期
1956.07.05
申请人
D. R. ELLIS MFG. COMPANY
发明人
ELLIS WAYNE S.
分类号
A01B15/20
主分类号
A01B15/20
代理机构
代理人
主权项
地址
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