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发明名称
Cushion spring standard for an earth working tool
摘要
申请公布号
US3098531(A)
申请公布日期
1963.07.23
申请号
US19610137836
申请日期
1961.09.13
申请人
DEERE & COMPANY
发明人
HUNTER GEORGE D.
分类号
A01B35/24;A01B61/04
主分类号
A01B35/24
代理机构
代理人
主权项
地址
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