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经营范围
发明名称
Planting trencher
摘要
申请公布号
US2815725(A)
申请公布日期
1957.12.10
申请号
US19560584869
申请日期
1956.05.14
申请人
HANSON JOHN C
发明人
HANSON JOHN C.
分类号
A01C5/00
主分类号
A01C5/00
代理机构
代理人
主权项
地址
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