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发明名称
Spring-trip for cultivator shovels
摘要
申请公布号
US2771831(A)
申请公布日期
1956.11.27
申请号
US19520311405
申请日期
1952.09.25
申请人
J. I. CASE COMPANY
发明人
REDETZKE EMERY C.
分类号
A01B35/22
主分类号
A01B35/22
代理机构
代理人
主权项
地址
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